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Worksheets

Second Semester EOS Review

Total questions: 245

Worksheet time: 5hrs 35mins

Name
Class
Date
1.

Which of the following monomers are joined together to make nucleic acids (DNA and RNA)?

a)

Amino acids

b)

Nucleotides

c)

Fatty acids

d)

Monosaccharides

2.

DNA replication is semi-conservative, which means that each newly created identical copies of DNA molecules (chromosomes) contains...?

a)

Each copy has two original strands

b)

Each copy has two new strands

c)

Each copy has one new strand and one original strand

d)

One copy has two new strands and the other has two original strands

3.

Place the steps of DNA replication in the correct order.

a)

3, 4, 2, 1

b)

3, 1, 4, 2

c)

2, 1, 4, 3

d)

3, 4, 1, 2

4.
A process in which DNA has the unique ability to make an exact copy of itself.
a)
Replication
b)
Translation
c)
Transcription
5.
In what phase of the cell cycle does DNA replication take place?
a)
G1
b)
S
c)
G2
d)
M
6.
Why does DNA replicate?
a)
To create another copy for the new cell
b)
To create a duplicate copy in case the original gets damaged
c)
To create a new copy to replace the damaged original
7.
What does DNA stand for?
a)
Deoxyribonucleic acid
b)
Denitrogenous acid
c)
Deribonucleic acid
d)
Diribonucleic acid
8.

Name this structure

a)

double helix

b)

nucelotide

c)

twisted ladder

d)

hydrogen bond

9.

In a eukaryotic cell, what organelle is DNA found in?

a)

cell membrane

b)

vacuole

c)

ribosome

d)

nucleus

10.

The letters of the DNA alphabet are:

a)

A, C, G and T

b)

A, O, G, and T

c)

C, G, P and T

d)

C, G, T and D

11.

Why is DNA important?

a)

It gives each cell instructions on how to do its job.

b)

It is what the cell membrane is made of.

c)

It helps the cell use water.

d)

It is food for the cell.

12.

In the DNA alphabet, T always pairs with:

a)

A

b)

T

c)

G

d)

C

13.

In the DNA alphabet, C always pairs with:

a)

A

b)

C

c)

T

d)

G

14.

How does DNA spell out different instructions?

a)

By having a double or triple helix

b)

Adding more phosphate

c)

Different sequences of letters from the DNA alphabet

d)

Adding more sugar

15.

A gene tells the cell how to make a __________.

a)

Sugar

b)

Phosphate

c)

Protein

d)

Ribosome

16.

The FULL NAME of the letter A from the DNA alphabet is:

a)

Adenine

b)

Albertine

c)

Augmentium

d)

Arginine

17.

The FULL NAME of the letter G from the DNA alphabet is:

a)

Guavine

b)

Grapine

c)

Glycine

d)

Guanine

18.

The FULL NAME of the letter T from the DNA alphabet is:

a)

Thymine

b)

Tyrosine

c)

Tryptophan

d)

Tellurium

19.

The FULL NAME of the letter C from the DNA alphabet is:

a)

Cytosine

b)

Cysteine

c)

Cryosine

d)

Calypsine

20.

The three parts of a nucleotide are:

a)

Sugar, protein, letter from DNA alphabet (nitrogen base)

b)

Sugar, phosphate, letter from DNA alphabet (nitrogen base)

c)

Phosphate, protein, letter from DNA alphabet (nitrogen base)

d)

Phosphate, sulphur, letter from DNA alphabet (nitrogen base)

21.

The sides of the DNA ladder are made of alternating:

a)

Letters from the DNA alphabet

b)

Sugar and phosphate

c)

Sugar and protein

d)

Phosphate and sulphur

22.
Where does transcription take place?
a)
nucleus
b)
cytoplasm
c)
ribosome
23.
What is occurring in this picture?
a)
Translation
b)
Replication
c)
Translocation
d)
Transcription
24.
what does mRNA do?
a)
carry info from genes to ribosomes
b)
carry amino acids to ribosomes
c)
help with RNA splicing
d)
make up ribosomes
25.
True or false:  RNA is double-stranded.
a)
true
b)
false
c)
it depends on the type
26.
Which of these bases does not exist in RNA?
a)
C
b)
T
c)
U
d)
A
27.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
28.

Which of the following is the building block (monomer) of the biomolecule class nucleus acids?

a)
b)
c)
d)
29.
Which is a difference between DNA and RNA
a)
RNA is double stranded
b)
RNA is not made of nucleotides
c)
RNA contains Uracil instead of Thymine
d)
RNA does not contain a sugar
30.

Which process makes mRNA (messenger RNA) from the DNA in the nucleus?

a)

transcription

b)

translation

c)

replication

31.

RNA contains which sugar?

a)

deoxyribose

b)

Ribose

c)

glucose

d)

fructose

32.

The goal of transcription is to make RNA.

a)

True

b)

False

33.

A 3 nucleotide sequence of mRNA is called a

a)

codon

b)

anticodon

c)

amino acid

d)

peptide bond

34.
In mRNA, each codon specifies a particular 
a)
nucleotide
b)
amino acid
c)
purine
d)
pyrimidine
35.

. What are the building blocks of proteins called?

a)

nucleotides

b)

proteins

c)

amino acids

d)

carbohydrates

36.
How many bases are in one codon?
a)
1
b)
2
c)
3
d)
4
37.
What is the correct sequence?
a)
RNA --> DNA --> Protein
b)
Protein --> RNA --> DNA
c)
DNA --> RNA --> Protein
d)
DNA --> Protein --> RNA
38.

What organelle is the site for protein synthesis (translation) in a cell?

a)

ribosomes

b)

mitochondria

c)

lysosome

d)

Golgi body

39.
Which amino acid is made from the RNA codon UUA?
a)
Phenylalanine
b)
Leucine
c)
Serine
d)
Tyrosine
40.

Overall, protein synthesis consists of these steps

a)

DNA synthesis, RNA synthesis and transcription

b)

transcription and translation

c)

DNA synthesis, transcription and translation

41.
How many amino acids are coded for by this sequence of nucleotides:
ATG GGA ACT CCA
a)
4
b)
2
c)
6
d)
12
42.

TRANSCRIBE this DNA sequence into RNA: TAC GTT ACT

a)

AUG CAA UGA

b)

ATG CAA TGA

c)

AUG GAT UGA

d)

TAC GTT ACT

43.
Bacteria which convert nitrogen gas into bio-available forms of nitrogen, such as ammonia and nitrate, are known as _____
a)
De-nitrification bacteria 
b)
Nitrogen fixing bacteria
c)
Oxidizers
d)
Buffers
44.
Fungi are a  ________
a)
Autotrophs
b)
Heterotroopers
c)
Decomposers
d)
Primary Consumers
45.

Approximately 90 percent of energy iconsumed by an organism is lost to ___

a)

Growth

b)

Heat - Due to Inefficiencies in metabolism

c)

Repairing cells

d)

Carbon dioxide

46.

What is the correct order for this food chain?

a)

Owl, Mouse, Grasshopper, Grass

b)

Grass, Mouse, Owl, Grasshopper

c)

Grass, Owl, Grasshopper, Mouse

d)

Grass, Grasshopper, Mouse, Owl

47.

Which of these organisms is the secondary consumer?

a)

Owl

b)

Mouse

c)

Grass

d)

Grasshopper

48.

Place the environment levels in the correct order from smallest to largest.

a)

biome, biosphere, population, organism, ecosystem,community

b)

organism, ecosystem, biosphere, population, community, biome

c)

organism, population, community, ecosystem, biome, biosphere

d)

population, community, organism, biome, ecosystem, biosphere

49.

What is the hawk in the food web?

a)

Producer

b)

Primary consumer

c)

Secondary consumer

d)

Tertiary consumer

50.

How much energy is transferred between trophic levels?

a)

25%

b)

20%

c)

10%

d)

90%

51.

Which of these is an autotroph?

a)

Consumer

b)

Producer

c)

Decomposer

52.

Volcano erupting would be an example of what type of succession?

a)

Primary

b)

Secondary

c)

Tertiary

53.

Group of the same species.

a)

Community

b)

Ecosystem

c)

Population

54.

All of the biotic and abiotic factors.

a)

community

b)

ecosystem

c)

population

55.

An organism's place in the biotic environment and its role in an ecosystem is it’s...?

a)

Niche

b)

Epitope

c)

Habitat

d)

Habit

56.

Identify the missed one

a)

Epitome

b)

Biome

c)

Paratome

d)

Parasite

57.
All of the living and nonliving things in an area that interact with each other are called a/an ______.
a)
community
b)
habitat
c)
population
d)
ecosystem
58.

The living parts of an ecosystem

a)

Biotic Factors

b)

Abiotic Factors

c)

Mother Earth

d)

Flowers

59.

The non-living parts of an ecosystem

a)

Ocean

b)

Lava Flow

c)

Birds

d)

Abiotic Factors

60.
The study of how living things interact with one another and with their environment.
a)
Biology
b)
Lithology
c)
Ecology
d)
Farmacology
61.
Organisms that look similar and can produce fertile offspring
a)
Species
b)
Fish
c)
Community
d)
Trees
62.
Two or more members of a particular species living and interacting in the same area
a)
Community
b)
Population
c)
Organisms
d)
Biosphere
63.
Different populations living and interacting with each other in the same area
a)
Biome
b)
Ecosystem
c)
Community
d)
Niche
64.
The area between the highest mountain and the deepest ocean where life can be found
a)
Biosphere
b)
Biome
c)
Farm
d)
Ecosystem
65.

Which of the following is NOT an example of a decomposer?

a)

mushroom

b)

leaves

c)

mold

d)

worm

66.

Which of the following is an example of a producer?

a)

frog

b)

algae

c)

worm

d)

mouse

67.
Example of a decomposer
a)
fungus
b)
mouse
c)
plants
d)
frogs
68.
A tree is a ....
a)
composer
b)
decomposer
c)
producer
69.
What is a producer?
a)
an organism that gets energy from eating other organisms
b)
an organisms that uses sunlight to make its own food
c)
an organism that gets energy from eating dead organisms, non-living material or waste
d)
an organism that uses chemical energy to make its own food
70.
What is a herbivore?
a)
an animal that gets energy from eating other animals
b)
an organism that gets energy from eating only plants
c)
an animal that gets energy by eating both plants and other animals
d)
an animal that eats only herbs
71.
What is a carnivore?
a)
an animal that gets energy by eating other animals
b)
An animal that gets energy by eating only plants
c)
an animal that gets energy by eating both plants and animals
d)
an animal that makes its own energy through photosynthesis
72.
An animal that gets energy from eating both plants and animals is a 
a)
herbivore
b)
carnivore
c)
omnivore
d)
autotroph
73.
The shrew provides energy for the _______?
a)
cricket
b)
grasshopper
c)
frog
d)
snake
74.
Which of the following is a herbivore?
a)
cricket
b)
frog
c)
hawk
d)
shrew
75.
Where do all life forms get their energy?
a)
Earth's Core
b)
Water
c)
Plants
d)
The Sun
76.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
77.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
78.
A producer is a (n) ______________.
a)
heterotroph
b)
omnitroph
c)
autotroph
d)
oscartroph
79.
All food chains begin with a ____________.
a)
primary consumer
b)
secondary consumer
c)
producers
d)
scavengers
80.
Which best describes what a food chain shows you?
a)
Energy flow through an ecosystem
b)
Food flowing through an ecosystem
c)
Consumers going into other consumers
d)
Who eats who
81.
Another name for a consumer is a
a)
heterotroph
b)
autotroph
c)
producer
d)
plant
82.
The image provided is an example of a:
a)
Producer
b)
Heterotroph
c)
Consumer
d)
Decomposer
83.
The image provided is an example of a(n):
a)
Autotroph
b)
Carnivore
c)
Herbivore
d)
Decomposer
84.
How does the carbon in grass become part of a lion?
a)
The lion eats the grass
b)
Carbon from grass doesn't end up in a lion. 
c)
The carbon ends up in the lion's food chain. 
d)
The lion breathes in carbon given out by the plant
85.
TRUE or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.
a)
True
b)
False
86.
Combustion is another word for __________.
a)
Transportation
b)
Respiration
c)
Fossil Fuels
d)
Burning
87.
What process occurs when coal (fossil fuel) is used for energy?
a)
Decomposition
b)
Combustion
c)
Pressurization 
d)
Respiration 
88.
The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?
a)
lower levels of ozone in the atmosphere
b)
lower levels of nitrogen in the atmosphere
c)
higher levels of carbon dioxide and other greenhouse gases in the atmosphere
d)
higher levels of oxygen in the atmosphere
89.

The circulation of the element Carbon among Earth's atmosphere, land, oceans, and organisms is called _____________.

a)

the Carbon Cycle

b)

the Oxygen Cycle

c)

the Carbon dioxide Cycle

d)

the Water Cycle

90.
How do living organisms return carbon to the atmosphere in the carbon cycle?
a)
respiration and photosynthesis
b)
 decomposition and respiration
91.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)
Air
92.

How do animals get carbon?

a)

By eating plants and or other animals.

b)

They absorb it from the atmosphere.

c)

From the ground

d)

They do not get carbon from anywhere.

93.

What are fossil fuels made from?

a)

Plants and animals that are buried underground for millions of years.

b)

They absorb it from the atmosphere.

c)

Water

d)

Wind

94.

What is CO2?

a)

Carbon Monoxide

b)

Carbon Trioxide

c)

Carbon Dioxide

d)

Oxygen

95.

Which of the following are examples of fossil fuels?

a)

Coal, water, oil

b)

Oxygen, coal, oil

c)

Coal, oil, natural gas

d)

None of the above

96.

True or false. Carbon dioxide is a greenhouse gas.

a)

True

b)

False

97.

Is carbon dioxide, and thus carbon, dissolved at the surface of the ocean or in the deep ocean?

a)

Surface

b)

Deep

98.

What does NOT produce atmospheric carbon dioxide?

a)

Photosynthesis

b)

Burning Fossil Fuels

c)

Animal respiration

d)

Anything living in the ocean.

99.
Which of the following is an example of a decomposer?
a)
Owl
b)
Fish
c)
Tree
d)
Mushroom
100.
How is the burning of fossil fuels related to global warming?
a)
Magic
b)
Fuels are hot
c)
Greenhouse effect
d)
Photosynthesis
101.

How does carbon become locked inside the earth?

a)

Tree roots expel carbon into the soil as they grow.

b)

Humans use machines to pump carbon dioxide into large underground rocks.

c)

Rocks become richer in carbon as time goes by.

d)

The carbon-rich bodies of plants and animals decay into the earth after they die.

102.

How do carbon emissions lead to global warming?

a)

By trapping the sun's heat in the atmosphere.

b)

By causing very hot volcanic eruptions.

c)

Rocks become richer in carbon as time goes by.

d)

By increasing the amount of carbon in the earth's crust

103.
Which of the following is the best conclusion that can be made from this graph?
a)
atmospheric carbon dioxide levels have been decreasing since 1960
b)
Hawaii has a lot of carbon dioxide
c)
humans have been working hard to decrease carbon dioxide levels
d)
atmospheric carbon dioxide levels have increased steadily since 1960
104.
1. Oxygen exists in the atmosphere as which state of matter?
a)
solid
b)
liquid 
c)
gas
d)
plasma
105.

In the environment, carbon exists as a gas in _____.

a)

cells

b)

geosphere

c)

atmosphere

106.
Burning fossil fuel has which effect in the carbon cycle?
a)
It removes carbon dioxide from the atmosphere.
b)
It puts carbon dioxide under the ground.
c)
It adds carbon dioxide to the atmosphere.
d)
It has no effect in the carbon cycle.
107.
Which process takes carbon dioxide out of the atmosphere?
a)
respiration
b)
combustion
c)
decomposition
d)
photosynthesis
108.

C6H12O6 is also known as glucose (sugar). Where is it found?

a)

Plants

b)

Animals

c)

Both plants and animals

d)

Neither plants or animals

109.

True or False. The nitrogen in the atmosphere is in the right form for living things to use.

a)

True

b)

False

110.

What is the role of denitrifying bacteria

a)

change nitrate back into nitrogen gas

b)

change nitrogen gas into nitrate

c)

absorb carbon dioxide in the soil

d)

release oxygen gas into the atmosphere

111.

This can transform nitrogen in the atmosphere into a usable form of nitrogen

a)

rain

b)

ice

c)

lightning

d)

sun

112.

What is the role of decomposing bacteria in the nitrogen cycle?

a)

change Nitrogen gas into Nitrate

b)

Return the nitrogen compounds to the soil

c)

Turn nitrogen into water

d)

Turn nitrate into nitrogen gas

113.

We need nitrogen to make

a)

proteins

b)

nucleic acids

c)

cells

d)

all of these

114.

The process in which nitrogen circulates and is recycled is called

a)

The nitrogen cycle

b)

The carbon cycle

c)

The water cycle

d)

The phosphorus cycle

115.

Organisms that need nitrogen to survive.

a)

only plants

b)

only animals

c)

only bacteria

d)

all living things

116.

How is nitrogen "fixed" into a usable form for plants?

a)

Through action of bacteria only

b)

Through lightning only

c)

Through action of bacteria and lightning

d)

Through photosynthesis

117.

How do animals get the nitrogen they need?

a)

From the air they breathe

b)

From the water they drink

c)

From the food they eat

d)

From the sun

118.

What is the process of combining nitrogen gas with other elements to make nitrogen into usable compounds?

a)

nitrogen composition

b)

nitrogen fixation

c)

ammonia

d)

denitrification

119.

What is the molecular formula for atmospheric nitrogen?

a)

N

b)

N2

c)

NH3

d)

NO3

120.

What process occurs when dead plant and animal matter decomposes and nitrogen is released back into the atmosphere?

a)

Assimilation

b)

Fixation

c)

Ammonification

d)

Denitrification

121.

Plants and animals need nitrogen to make __________.

a)

Proteins & Nucleic Acids

b)

Carbohydrates

c)

Lipids

d)

Minerals

122.
DNA is a polymer made of:
a)
Nucleotides
b)
Ribosomes
c)
Purines
d)
Pyrimidines
123.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
124.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
125.

A change in a DNA sequence(order) that affects genetic information.

a)

Recessive trait

b)

Mutation

c)

Allele

126.
__________________ is a change in the nucleotide base sequence of DNA.
a)
switch
b)
eraser
c)
creation
d)
mutation
127.

Which of these molecules is an amino acid?

a)

A

b)

B

c)

C

d)

D

128.
What is the function of a nucleic acid?
a)
Stores genetic information
b)
Stores energy
c)
Quick source of energy
d)
Builds structures
129.

Which class of biomolecules is this monomer a picture of?

a)

Protein (Amino Acid monomer)

b)

Nucleic Acid

c)

Lipid (Fatty Acid monomer)

d)

Carbohydrate (Monosaccharide monomer)

130.
Amino acids are the building blocks of... 
a)
DNA
b)
RNA
c)
Atoms
d)
Proteins
131.
How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though the look and perform completely different?
a)
The two different cells become mutated
b)
The proteins expressed in each cell are different
c)
They actually have different DNA in the two types of cells.
d)
The genome of the different cells changes
132.
_______ is to transcription as ________ is to translation.
a)
mRNA / Amino Acid Chain
b)
Amino Acid Chain / mRNA
c)
Ribosome / Nucleus
d)
mRNA / tRNA
133.
____ is the activation of a gene that results in transcription.
a)
Gene expression
b)
Gene technology
c)
Eukaryotic expression
d)
Prokaryotic expression
134.
What causes mutations?
a)
All of the above 
b)
mistakes in DNA replication 
c)
UV rays (sun exposure) 
d)
Carcinogens (cancerous chemicals) 
135.
Where do mutations occur?
a)
DNA and RNA
b)
DNA 
c)
RNA
d)
mRNA and amino acids 
136.
Which of the following would result in a frameshift mutation?
a)
Insertions only
b)
Substitution only
c)
Deletion only
d)
Insertions and Deletions
137.
What is a Gene?
a)
A segment of RNA that encodes for a protein
b)
A chromosome
c)
A segment of DNA that encodes for a protein
d)
Your genome
138.
What mutation has occurred here? 
T-G-A-C-C-A
T-G-A-G-C-A
a)
Substitution
b)
Deletion
c)
Insertion
d)
Frameshift 
139.
Original: ATC CAT
Mutation: ATC GCAT
What mutation occurred?
a)
deletion
b)
insertion
c)
silent
d)
transverse
140.
Are all mutations bad?
a)
Yes
b)
No
141.

DNA sequences can often be used to determine relationships between...

a)

nutritional needs

b)

organisms

c)

habitats

142.

Which type of mutation is MOST LIKELY to cause the greatest disruption?

a)

Frameshift

b)

Silent

c)

Point

143.

The Himalayan rabbit's habitat has cold, snowy winters and mild summers. The body is typically covered in white fur except for the nose, feet, tail, and ears, which are covered in black fur. A scientist shaved an area of white fur on the back of a Himalayan rabbit and placed an ice pack over the shaved area. The shaved are grew black fur. Which of these best explains why the hair that grew back where the ice pack was placed was black and not white?

a)

the genes for black hair were activated by specific temperatures

b)

the white hair mutated to black hair as the rabbit's body temperature decreased.

c)

the coat color changed from white to black with the age of the rabbit

d)

white hair only grows during certain times of the year

144.

The arctic fox inhabits northern areas of North America. The same arctic fox is shown in the drawing at different times of the year. What causes this change in fur color?

a)

the alleles for fur color change as the arctic fox grows older

b)

gene expression for fur color is regulated by latitude

c)

the arctic fox has two traits for fur color that are determined at birth

d)

gene expression for fur color is regulated by temperature

145.

Human bone, muscle, and nerve cells all contain the same number of chromosomes with the same complement of genes. What enables these cells to perform specialized activities?

a)

the ability of some cells to remove unnecessary DNA sequences

b)

the regulation of gene expression within each cell type

c)

the mutation of genes within each cell type

d)

the use of different methods of cell division

146.
Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.
a)
mutualism
b)
commensalism
c)
competition
d)
parasitism
147.
A relationship between two organisms in which one organism benefits and the other is unharmed...
a)
Mutualism 
b)
Competition
c)
Parasitsm 
d)
Commensalism 
148.

A tapeworm lives in the intestine of a cat absorbing nutrients through its skin. A tapeworm and a cat have this type of relationship.

a)

mutualism

b)

parasitism

c)

commensalism

d)

competition

149.
What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
150.
What type of symbiosis?  Skunks often live in burrows that have been dug and abandoned by woodchucks.  
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
151.
Which symbols best describe parasitism?
a)
+,+
b)
+,-
c)
+,0
d)
-,0
152.
Red-billed oxpeckers are birds that often feed on parasites that infest impala.  This is an example of _______.
a)
commensalism
b)
mutualism
c)
neutralism
d)
competition
153.
A relationship between two organisms in which both organisms benefit. 
a)
Mutualism 
b)
Competition
c)
Parasitsm 
d)
Commensalism 
154.
When a mosquito bites you, you are the __________ and the mosquito is the  ____________.
a)
host, hostess
b)
parasite, host
c)
host, parasite
d)
prey, predator
155.

Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.

a)

Predation

b)

Parasitism

c)

Commensalism

d)

Mutualism

156.

Clown fish live among anemones, acting as a lure for the sea anemone's prey. The clown fish get protection and shelter from the anemone. This is an example of which type of symbiosis?

a)

Commensalism

b)

Mutualism

c)

Parasitism

157.

Lichens are close associations of fungi and algae. The fungi hold the water supply and the algae perform photosynthesis to manufacture carbohydrates for both organisms.

a)

mutualism

b)

commensalism

c)

parasitism

158.

Certain species of Lactobacillu bacteria live in our lungs and destroy many of the microorganisms that enter our respiratory system. They are highly adapted to living in our lungs and can't survive in many other habitats.

a)

mutualism

b)

commensalism

c)

parasitism

159.

When taken to a new habitat, non-native plants often threaten native plants of the new habitat. Why do they do this?

a)

Non-native plants are able to mutate rapidly

b)

Non-native plants cause native animals to relocate

c)

Non-native plants are able to be used for medicine

d)

Non-native plants are invasive and compete with native plants for resources

160.

After a volcanic eruption, lava covers the land. What is the order that plants will grow?

a)

Lichens → Grasses → Shrubs → Trees

b)

Lichens → tree → shrubs→Grasses

161.

Which answer is true regarding biodiversity?

a)

Biodiversity is not important

b)

The rain forest has an unhealthy ecosystem because its biodiversity is too great.

c)

An ecosystem is more stable when the biodiversity is greater.

d)

Biodiversity is positively affected when non-native species are introduced into an environment

162.

What is most stable and final stage of succession:

a)

First Community

b)

Climax Community

c)

Pioneer Species

d)

Intermediate Community

163.
What is formed during primary succession that doesn't need to be formed during secondary succession?
a)
pioneer species
b)
soil
c)
climax community
d)
lichens
164.
What type of succession is shown going from figure A to figure B?
a)
primary succession
b)
eutrophication
c)
secondary succession
d)
intermediate
165.
After a forest fire, an ecosystem would start regrowth through -
a)
primary succession
b)
secondary succession
c)
climax community
d)
limiting factors
166.
Which catastrophic event will most likely have the effect of returning an ecosystem to primary succession?
a)
A tornado
b)
A volcanic eruption
c)
A flood
d)
A drought
167.

What term best relates to equilibrium?

a)

pioneer species

b)

primary succession

c)

secondary succession

d)

climax community

168.

Breaking News! A new island has formed off of Hawaii! What must occur for it to become an ecosystem?

a)

Secondary Succession

b)

Aquatic succession

c)

Primary Succession

d)

Ferns must grow

169.

Which would result in primary succession?

a)

volcano destroying habitat leaving only soil and ash

b)

Tornado destroying a crop leaving very little soil

c)

Glacier retreating exposing bare rock

d)

limiting factors

170.

Primary succession occurs in areas with:

a)

very little soil

b)

lots of soil

c)

no soil

d)

soil that has been disturbed

171.

What best describes the term succession?

a)

rapid changes that create an ecosystem overnight

b)

gradual changes over time to fully create or restore and ecosystem

c)

forest with the tallest trees

d)

the rate species produce offspring

172.
Structures are similar in appearance but not in structure
a)
Vestigial 
b)
Homologous 
c)
Analogous Structures 
d)
Embryonic 
173.
Which layer is the youngest
a)
1
b)
2
c)
3
d)
4
174.
Which layer is the oldest
a)
B
b)
A
c)
E
d)
C
175.

Which of the following is the collection of life's remains found in sedimentary rock?

a)

natural selection

b)

homologous structures

c)

Charles Darwin

d)

the fossil record

176.

Similar structures with different purposes found in different species are known as _____

a)

vestigial structures

b)

DNA

c)

homologous structures

d)

the fossil record

177.
The changes of species over time
a)
Embryonic 
b)
Natural selection 
c)
Mimicry 
d)
Evolution 
178.

The picture shows a/an ___________

a)

homologous structure

b)

vestigial structure

179.
The opossum and kangaroo both incubate their young in a pouch. This provides evidence that they---
a)
are descended from a common ancestor
b)
Have very similar skeletal structures
c)
belong to the same species
d)
must range great distances to eat
180.

What is this an example of?

a)

Homologous structure

b)

Analogous structure

c)

Vestigial organs

d)

Functional adaption

181.
Which of the following is an example of a vestigial structure?
a)
the wings of a red-tailed hawk
b)
the hind limbs of a house cat
c)
the fins of sharks
d)
the tailbone of a human
182.

Which example is NOT evidence for evolution?

a)

many animals have homologous structures due to common ancestry

b)

Many animals have vestigial structures from an ancestor

c)

We can observe changes in life forms by observing the fossil record

d)

All of these are evidence for evolution

183.

If two organisms have similar DNA sequences they are probably?

a)

share a common ancestor

b)

share a common environment

c)

share a common population

d)

speciation

184.

A physical trait favored by an environmental change can be called an

a)

adaptation

b)

extinction

c)

possibility

d)

mutation

185.

Two populations of the same species are separated by land barriers like rivers or mountains.

a)

geographical isolation

b)

temporal isolation

c)

adaptive ratiation

d)

behavioral isolaton

186.

After a long time in isolation, Island fruit flies and mainland fruit flies meet. They do not produce viable eggs due to genetic differences. The flies have resulted in two seperate lineages due to:

a)

Gene Pool

b)

Genetic Drift

c)

Gene Frequency

d)

Speciation

187.

All of these finches have different shaped beaks, they are an adaptation to gain access of

a)

Water

b)

Food

c)

Shelter

d)

Mates

188.

According to the theory of natural selection, why are some individuals more likely than others to survive and reproduce?

a)

Some individuals pass on to their offspring new characteristics they have acquired during their lifetimes.

b)

Some individuals are better adapted to exist in their environment than others are.

c)

Some individuals do not pass on to their offspring new characteristics they have acquired during their lifetimes.

d)

Some individuals tend to produce fewer offspring than others in the same environment.

189.
In natural selection, the selective agent is the
a)
humans
b)
mutations
c)
breeders
d)
environment
190.

Mutations are important because they bring about

a)

death of the organism in which they develop

b)

genetic variation needed for a population to evolve

c)

benefits for the individual, not for the population

d)

Hardey-Weinberg equilibrium within a population

191.

Why has antibiotic resistance evolved in bacteria?

a)

Bacteria reproduce quickly

b)

Bacteria with a resistance to the antibiotic, passed that trait to offspring

c)

Bacteria that are resistant reproduce faster than non resistant strains

d)

Bacteria exposed to antibiotics develop a resistance to them

192.

Which word means the formation of new species?

a)

speciation

b)

specialization

c)

founder effect

d)

sexual selection

193.

When members of two populations cannot successfully reproduce.

a)

reproductive isolation

b)

lonely isolation

c)

convergent isolation

d)

genetic drift

194.

When members of two populations reproduce during different times.

a)

behavioral isolation

b)

temporal isolation

c)

geographic isolation

d)

calendar isolation

195.
What is this an example of?
a)
diversity of species
b)
variation
c)
vestigial structures
d)
DNA studies
196.

Type of reproductive barrier evidenced by this diagram.

a)

Temporal isolation

b)

Habitat (geographic) isolation

c)

Behavioral isolation

d)

Mechanical isolation

e)

Gametic isolation

197.
A rabbit that can easily outcompete other rabbits for food and that can produce many offspring has a high
a)
sexuality
b)
mutation rate
c)
fitness
d)
adaptability
198.

Mimicry means:

a)

A tree that has pink flowers in the spring

b)

When one living thing looks like a different kind of living thing

c)

A way an animal blends in with its environment

199.

Which is NOT an example of mimicry:

a)

The fur of an arctic fox turns white in winter to match the snow

b)

The tongue of an alligator snapping turtle looks like a worm, so he lures fish to his mouth

c)

A bad tasting butterfly & a good tasting butterfly have similar markings, so birds don't eat either kind

200.

Which picture is an example of mimicry?

a)
b)
201.

What is binomial nomenclature?

a)

system of 3 names

b)

system of 2 names

c)

the names of the kingdoms

d)

the levels of classification

202.
What are the 8 levels of classification of living things from most general to most specific?
a)
domain, kingdom, phylum, class, order, family, genus, species
b)
domain, kingdom, phylum, class, order, family, genius, species
c)
domain, kingdom, phamily, class, order, family, genus, species
d)
domain, king, phillip, class, order, family, genus, species
203.
A student discovers an arachnid with a segmented abdomen, long legs, and a tail with no stinger. The student uses the dichotomous key below to identify it. Which arachnid has the student found?
a)
Whip Scorpion
b)
Wind Scorpion
c)
Daddy long legs
d)
Scorpion
204.

Which of the following is the correct way to show the scientific name for tiger?

a)

Panthera Tigris

b)

Panthera tigris

c)

panthera Tigris

d)

panthera tigris

205.

Which of the following is a reason scientists use scientific names as opposed to their common names?

a)

Scientists around the world use the same names so there is no language barrier

b)

No two species have the same name, so there is no confusion about which organism is being studied

c)

Scientific names can help you know which organisms are related if they share a common genus name

206.

Scientists group similar organisms together through a process called .....

a)

identification

b)

Estimation

c)

Classification

d)

Organization

207.

What is the genus name here:

Canis lupus

a)

Canis

b)

lupus

208.

Biologist group living things based on ____.

a)

Habitat

b)

Size

c)

Colors

d)

Shared Characteristics

209.
An organism that has cells that lack a nucleus are called:
a)
Eukaryote
b)
Heterotroph
c)
Prokaryote
d)
Autotroph
210.
The scientific name for water bear is Hypsibius dujardini.  What is its genus?
a)
Hypsibius 
b)
dujardini
c)
water 
d)
tardigrade
211.
The scientific name for water bear is Hypsibius dujardini.  What is its species?
a)
Hypsibius 
b)
dujardini
c)
water 
d)
tardigrade
212.
What is the science of organizing, classifying and naming living things.
a)
taxonomy
b)
taxadermy
c)
taxicab
d)
toxicology
213.
If two species share the same class, they also share the same______.
a)
phylum
b)
order
c)
genus
d)
species
214.
Who is the closest relative to the birds?
a)
crocodiles
b)
sharks
c)
fish
d)
amphibians
215.

Who is the closest relative to the sharks?

a)

crocodiles

b)

rodents

c)

ray-finned fish

d)

amphibians

216.
Which of the following structure can be found in a plant cell but NOT an animal cell?
a)
vacuole
b)
nucleus
c)
chloroplast
d)
mitochondria
217.
Which would be found in the cell of a sunflower plant but not in the cell of a chicken?
a)
cell wall
b)
vacuole
c)
mitochondria
d)
cell membrane
218.
What is the smallest unit of life that can carry out all life functions?
a)
the nucleus
b)
the vacuole
c)
the mitochondria
d)
the cell
219.
Is the following a plant or animal cell or both? 
Cell Wall
a)
Plant
b)
Animal
c)
Both
220.
Plants and animal cells both have a nucleus.
a)
True
b)
False
221.
Is this made of plant cells or
animal cells?
a)
Plant
b)
Animal 
c)
Neither
222.
Is this made of plant cells or
animal cells?
a)
Plant
b)
Animal
c)
Neither
223.
This cell can produce it's own food through photosynthesis. 
a)
Animal
b)
Plant
224.

Prokaryotes do not have a nucleus. Which of the following is an example of a prokaryote?

a)

Virus

b)

Plant

c)

Bacteria

d)

Fungi

225.

A person with AIDS is likely to develop infectious diseases because the Human Immunodeficiency Virus (HIV) that causes AIDS...?

a)

destroys cancerous cells

b)

damages the immune system

c)

increases the rate of antibody production

d)

increases the rate of microbe destruction

226.

T/F All bacteria are bad

a)

True

b)

False

227.

Besides DNA or RNA, what else is a virus made of?

a)

a cell wall

b)

a cell membrane

c)

a protein coat

d)

a carbohydrate coat

228.
Scientists classify viruses as nonliving.
a)
True
b)
False
229.

Which of the following is true for both bacteria and viruses?

a)

both contain genetic material

b)

can be killed using antibiotics

c)

have a cell membrane

d)

have a protein coat

230.

Which statement is true about viruses?

a)

Viruses can eat and metabolize food.

b)

Viruses can reproduce only using a host cell.

c)

Viruses can reproduce on their own at any time.

d)

Viruses contain DNA, so they are alive.

231.

Which viral life cycle kills its host cell by lysing (bursting)?

a)

Lysogenic Cycle

b)

Lytic Cycle

c)

Binary Fission

d)

Conjugation

232.

Viruses in the lysogenic cycle can be DORMANT. This means they....

a)

are resting and waiting to attack

b)

speed up reactions

c)

are infecting quickly

d)

catalyzing proteins

233.

T/F The influenza virus (flu) is an example of a virus that goes through the lytic cycle.

a)

True

b)

False

234.

Many plants have bright, sweet smelling flowers. How would this adaptation help the plant?

a)

It warns away predators

b)

It attracts bees and other pollinators

c)

It helps the plant store water

d)

It gives the plant shade.

235.

Tropism means to _________?

a)

grow in response to stimuli

b)

to create something new

c)

Chemical energy

d)

Taproot system

236.

When plants grow in towards the light, this is called:

a)

Phototropism

b)

Geotropism

c)

Germination

d)

Thigmotropism

237.
What type of tropism response to water? 
a)
Hydrotropism
b)
Gravitropism
c)
Thigmotropism
d)
Phototropism
238.
If a plant experiences a gravitropism, then it will do what?
a)
Grow toward or away from light. 
b)
Grow away from light. 
c)
Grow toward light.
d)
Grow in response to gravity. 
239.

What is the main function of phloem in a plant?

a)

To transport food (glucose) to different parts of a plant.

b)

To transport water to different parts of a plant.

c)

To make energy for the plant via photosynthesis.

d)

To provide structural support to a plant.

240.

What is the main function of xylem in a plant?

a)

To transport nutrients (mainly sucrose) to different parts of a plant.

b)

To make energy for the plant via photosynthesis.

c)

To transport carbon dioxide to the leaves for photosynthessis.

d)

To transport water to different parts of plant.

241.

Which organelle is found in plant cells but NOT animal cells?

a)

cell membrane

b)

cell wall

c)

nucleus

242.

Which part makes and transports proteins; contains ribosome?

a)

Cell Wall

b)

Cytosol

c)

Golgi Apparatus

d)

Rough endoplasmic Reticulum

243.

What 2 systems: Allows for movement

a)

Muscular and Skeletal

b)

Endocrine and Skeletal

c)

Nervous and Circulatory

d)

Integumentary and Reproductive

244.

Which two body systems interact to send oxygen throughout the body?

a)

Nervous and Digestive

b)

Respiratory and Circulatory

c)

Excretory and Endocrine

d)

Circulatory and Skeletal

245.

The immune system fights diseases. The circulatory system pairs with the immune system because ___.

a)

blood is made in the bones.

b)

plasma carries nutrients.

c)

red blood cells carry oxygen.

d)

white blood cells fight infection.