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LVA Bio Semester 1 Review

Total questions: 98

Worksheet time: 3hrs 54mins

Name
Class
Date
1.
Which of the following organisms is a herbivore.
a)
butterfly
b)
snake
c)
fox
d)
ladybird
2.

Which of the following organisms is a carnivore.

a)

greenfly

b)

plant

c)

mouse

d)

buzzard

3.
The owl receives energy from which organisms?
a)
grasshopper and mouse
b)
mouse and rabbit
c)
rabbit and butterfly
d)
butterfly and frog
4.
Name the producers in this food web.
a)
seagull and fish
b)
penguin and crab
c)
phytoplankton and seaweed
d)
seaweed and zooplankton
5.
What type of consumer is the wolf?
a)
herbivore
b)
omnivore
c)
carnivore
d)
decomposer
6.
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
7.
An organism that gets energy from eating other organisms is a ______________.
a)
producer
b)
consumer
c)
decomposer
d)
prey
8.
What does a food chain represent?
a)
How all living organisms within a habitat are connected.
b)
All of the things that a particular animal eats.
c)
How plants create their own food.
d)
A single path of energy transfer within a habitat.
9.
Which organism do the owl and the weasel compete for in the food web?
a)
Hawk
b)
Spider
c)
Grasshopper
d)
Shrew
10.
What percentage of energy is passed on to each tropic level?
a)
10%
b)
50%
c)
90%
d)
100%
11.

Only about ten percent of the energy stored in an organism can be passed on to the next trophic level. Of the remaining energy, some is used for the organism’s life processes, and the rest is typically...

a)

used in reproduction

b)

stored as body fat

c)

stored as body tissues

d)

converted to heat and lost

12.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
13.
In a food web, arrows point at:
a)
who gets energy.
b)
who gets eaten.
14.
All energy on Earth ultimately comes from what source?
a)
Water
b)
Sun
c)
Consumers
d)
Oxygen
15.
If the number of births in a population is the same as the number of deaths in a population, what will happen to the growth of the population?
a)
It will increase.
b)
It will decrease.
c)
It will stay the same.
d)
It will fluctuate.
16.

How can population growth lead to more pollution?

a)

Too many people breathing causes too much carbon dioxide to enter the atmosphere

b)

The body heat generated by billions of people leads to an increase in global warming

c)

More people being born means more paper is needed to print birth certificates

d)

All people produce waste, so more people equals more waste

17.

What type of growth is shown in the diagram?

a)

exponential growth

b)

logistic growth

c)

predator-prey cycle

d)

boom-bust curve

18.

Largest number of individuals of a population that the environment can support...

a)

carrying capacity

b)

population

c)

biome

d)

mutualism

19.

What is the carrying capacity for this sheep population?

a)

2.0 million

b)

1.0 million

c)

1.6 million

d)

0.5 million

20.

What is the approximate carrying capacity of Paramecium aurelia grown alone?

a)

100

b)

200

c)

300

d)

450

21.

What point on the graph represents the carrying capacity?

a)

A

b)

B

c)

C

d)

D

22.

When a population grows past the ecosystem's carrying capacity, what most likley happens to the population?

a)

Continues to grow

b)

The population starts to die off to return to carrying capcity

c)

The population will go completely extinct due to lack of resources

23.

Limiting factors are sometimes helpful because they can keep the population from getting to large.

a)

True

b)

False

24.

Which limiting factor is density independent?

a)

water

b)

food

c)

natural disasters

25.

Which limiting factor would increase due to the number of individuals in a population?

a)

Unusual weather

b)

Natural disaster

c)

Disease

26.

An environmental factor such as amount of space, disease, and availability of mates that depends on the number of members in a population is called

a)

density- dependent factor

b)

density- independent factor

27.

Food, water, sunlight, shelter, and space are resources that are called

a)

limiting factors

b)

species

c)

biotic

d)

none of the above

28.
What kind of factor: resource scarcity?
a)
density-independent
b)
density-dependent
29.
Logistic population growth leads to this kind of graph
a)
S curve
b)
J curve
c)
M curve
d)
W curve
30.
Exponential population growth leads to this kind of graph
a)
S curve
b)
J curve
c)
M curve
d)
W curve
31.

A living, or once-living, organism in an ecosystem is a/an ---

a)

abiotic factor.

b)

biotic factor.

32.

A nonliving element in an ecosystem is a/an ---

a)

biotic factor.

b)

abiotic factor.

33.

Which of the following is NOT an abiotic factor?

a)

sun

b)

temperature

c)

soil

d)

grass

34.

Which of the following is NOT a biotic factor?

a)

mushroom

b)

air

c)

elephant

d)

coyote

35.

Which kind of factor would a deer be considered in a forest ecosystem?

a)

abiotic

b)

biotic

36.

Which kind of factor would sunlight be considered in any ecosystem?

a)

abiotic

b)

biotic

37.
What type of relationship is this?
a)
Predator-Prey
b)
Producer-Consumer
c)
Parasite-Host
38.

When two organisms fight for the same resource

a)

Competition

b)

Parasitism

c)

Commensalism

d)

Predation

e)

Mutualism

39.

When one organism benefits while the other organism is neither helped or hurt.

a)

Competition

b)

Parasitism

c)

Commensalism

d)

Predation

e)

Mutualism

40.

When both organisms benefits.

a)

Competition

b)

Parasitism

c)

Commensalism

d)

Predation

e)

Mutualism

41.

When one organism benefits while the other organism is hurt.

a)

Competition

b)

Parasitism

c)

Commensalism

d)

Predation

e)

Mutualism

42.
Barnacles sometimes live on the outside surface of other larger shelled organisms without causing any harm. What is the ecological relationship?
a)
Mutualism
b)
Parasitism
c)
Commensalism
d)
Predator-Prey
43.

In a predator-prey relationship, when the population of the predator increases, the population of the prey will ____________.

a)

Increase

b)

Remain Stable

c)

Decrease

d)

Change unpredictably

44.
Ants protect soft bodied aphids and in return the aphids feed the ants a sugary drink. What is the ecological relationship?
a)
Cooperation
b)
Parasitism
c)
Commensalism
d)
Mutualism
45.

Wasps often lay their eggs just inside the eggs of butterflies. The wasp larva (baby wasps) are able to get lots of nutrients and protection from the butterfly/caterpillar egg while its developing. After the caterpillar is born, the wasps continue lurking in the flesh of the caterpillar, soaking up more nutrients and drinking its blood. The wasp larva must keep its host alive, so it avoids damaging the vital organs.

What type of symbiosis is being described?

a)

predator/prey

b)

competition

c)

commensalism

d)

parasitism

46.
When predator numbers decrease, prey numbers ____________ because fewer of them are being consumed.
a)
decrease
b)
increase
c)
stay the same
d)
divide in half
47.
What is the growing of one single crop all the time called?
a)
agriculture
b)
monoculture
c)
hydrofracking
d)
geothermal
48.

What does monoculture mean?

a)

A game to acquire as much money and property as possible

b)

The growing of multiple crops in one particular area

c)

The growing of multiple types of animals in one particular area

d)

The growing of a single crop in one particular area

49.

One of the advantages of Polyculture is that it

a)

reduces pests and weeds

b)

is more labor intensive

c)

maximizes efficiency

d)

simplifies production

50.

A major disadvantage to Monoculture is

a)

its high use of fertilizers

b)

simplicity of production

c)

its need for specialized harvesting

d)

that it reduces the threat of pests

51.
How do lichens contribute to primary succession?
a)
Lichens decompose organic matter from animals and plants
b)
Lichens begin to break down rock to form soil
c)
Lichens are nitrogen fixing bacteria
d)
Lichens convert carbohydrates into fossil fuels.
52.
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
53.
succession that occurs in an area with no soil
a)
ecological succession 
b)
primary succession 
c)
secondary succession
d)
pioneer speciles
54.

Which experiences the least change over time?

a)

Pioneer Species

b)

Primary Succession

c)

Aquatic Succession

d)

Climax Community

55.
What is the order of succession shown in this figure?
a)
A, B, C, D
b)
B, A, D, C
c)
C, D, A, B
d)
D, A, B, C
56.
What type of succession is shown going from figure A to figure B?
a)
primary succession
b)
ecological succession
c)
secondary succession
d)
intermediate
57.

Diffusion & Facilitated Diffusion are both __________ transport.

a)

Passive

b)

Active

c)

Easy

d)

Free

58.

Passive Transport is the movement of particles across the membrane from an area of [ ___ ] to an area of [ ___ ]

a)

high to low

b)

low to high

c)

low to low

d)

high to high

59.

Passive Transport uses ____ energy

a)

no

b)

a lot of

c)

a little bit of

d)

some

60.

_____________ is the free movement of particles across the membrane with the concentration gradient

a)

diffusion

b)

facilitated diffusion

c)

active transport

d)

fusion

61.

What is the movement of particles with the concentration gradient using protein "helpers"?

a)

diffusion

b)

facilitated diffusion

c)

active transport

d)

enzymatic reactions

62.
Which diagram best shows the end result of diffusion?
a)
F
b)
G
c)
H
d)
J
63.
The picture  is an example of _________________.
a)
isotonic
b)
diffusion
c)
osmosis
d)
active transport
64.
Which organelle performs PHOTOSYNTHESIS?
a)
Chloroplast
b)
Mitochondria
65.
What is the ultimate ORIGINAL source of energy for living things
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
66.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
67.
What is the pigment in chloroplasts that performs photosynthesis?
a)
Chlorosynthesis
b)
Chlorophyll
c)
ADP
d)
Electron Transport
68.
After photosynthesis, plants store their energy as _________ .
a)
chlorophyll
b)
pigment
c)
glucose (sugar)
d)
Oxygen
69.
What is the main chemical compound that stores and releases energy?
a)
ATP
b)
Cytoplasm
c)
PTP
d)
Oxygen
70.
the products of photosynthesis are...
a)
glucose and sunlight
b)
carbon dioxide and water
c)
glucose and chlorophyll
d)
oxygen and glucose
71.
The vascular tissue of the plant that transports water is the...
a)
roots
b)
phloem
c)
xylem
d)
stem
72.
How does photosynthesis benefit heterotrophs?
a)
It adds carbon dioxide to the air.
b)
It creates a source of energy they can eat.
c)
It creates clean water.
d)
It eliminates harmful sugars.
73.
Proteins are made of monomers called ___________
a)
Nucleotides
b)
Monosaccharides
c)
Amino Acids
d)
Glycerol and fatty acids
74.
DNA and RNA are examples of 
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
75.
Nucleotides are monomers of
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
76.
Monosaccharides are monomers of
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
77.
Waxes, oils and fats are examples of
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
78.
Which macromolecule stores energy, insulates us, and makes up the cell membrane?
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
79.
All polymers are made up of...
a)
monosaccharides
b)
monomers
c)
proteins
d)
None of these
80.
All organic compounds contain the element
a)
carbon
b)
nitrogen
c)
phosphorus
d)
sulfur
81.
In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?
a)
80%
b)
90%
c)
10%
d)
20%
82.

The collective mass of all living things in a particular area or at a specific trophic level of an ecosystem is known as...

a)

Population Size

b)

Biomagnification

c)

Biomass

d)

Apex Trophism

83.

Which organism in the food web shown to the right would

contain the lowest concentration of chemical pollutants?

a)

producers

b)

primary consumers

c)

secondary consumers

d)

tertiary consumers

84.

The phenomenon by which toxins concentrate in the organisms at higher trophic levels within an ecosystem is known as...

a)

Biotoxicity

b)

Biomagnification

c)

Eutrophication

d)

Predation

85.

Consider the following food chain:

Algae > Mayfly > Minnow > Trout

In a polluted ecosystem, which organism would likely have the HIGHEST level of toxic chemicals in its body?

a)

Algae

b)

Mayfly

c)

Minnow

d)

Trout

86.

Humans burn fossil fuels and wood, releasing carbon dioxide into the atmosphere. This carbon dioxide is then absorbed by trees for photosynthesis. These processes are contributory to which chemical cycle?

a)

The carbon cycle

b)

The water cycle

c)

The nitrogen cycle

d)

The phosphorous cycle

87.

How does the human body return carbon to the atmosphere in the carbon cycle?

a)

Waste products

b)

Photosynthesis

c)

Cellular respiration

d)

Formation of glucose

88.

Which of the following is an example of human impact on the carbon cycle?

a)

The increased production of methane gases from cattle farms

b)

The burning of fossil fuels

c)

The cutting down of trees for lumber

d)

Driving automobiles

e)

All of the above

89.

If a forest fire occurs, what will happen to the carbon in the forest?

a)

It will go into the soil

b)

It will go into the atmosphere

c)

It will runoff into nearby streams and rivers

d)

It will be destroyed

90.

By what method is the majority of carbon moved from the lithosphere (upper part of Earth's crust) to the atmosphere?

a)

Weathering

b)

Deposition

c)

The burning of fossil fuels

d)

Respiration

91.
The purpose of cellular respiration is to produce ?
a)
energy
b)
oxygen
c)
sugar
d)
protein
92.
What is the sugar that carbs are broken down to?
a)
sucrose
b)
maltose
c)
glucose
d)
lactose
93.
What is the energy organelle?
a)
nucleus
b)
mitochondria
c)
ribosomes
d)
lysosomes
94.
The splitting of the glucose molecule is called?
a)
synthesis
b)
denaturalization
c)
glycolysis
d)
dissolving
95.
The two type of fermentation are alcohol and _____________ acid fermentation. 
a)
lactic
b)
sulfuric
c)
hydrochloric
d)
acetic 
96.
To get the most ATP molecules for energy in cellular respiration, you have to have lots of ?
a)
hydrogen
b)
oxygen
c)
carbon dioxide
d)
water
97.

What is important about cellular respiration?

a)

It produces energy from the sun.

b)

It forms sugar.

c)

It transforms sugar into a usable form of energy (ATP)

d)

Only plants perform this process.

98.

One molecule produced by animals during cellular respiration is

a)

carbon dioxide

b)

glucose

c)

oxygen

d)

chlorophyll

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