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Mrs. Heller BIO Sem. 2 Final Exam 2023

Total questions: 90

Worksheet time: 3hrs 0mins

Name
Class
Date
1.

TRUE or FALSE? Invasive species grow quickly due to the lack of predators. This leads to a decline or extinction of the native population.

a)

True

b)

False

2.
What is an invasive species?
a)
A native (naturally found) species which are added to an area. 
b)
A non-native (not naturally found) species added to an area. 
c)
A keystone species in an environment
d)
none of the above
3.

The primary cause of the introduction of invasive species introduction is ---

a)

too much food.

b)

human action.

c)

weather events.

d)

asteroids.

4.

A species indigenous to a certain region or ecosystem naturally is a ---

a)

Native Species.

b)

Accidental Species.

c)

Introduced Species.

d)

Invasive Species.

5.

A species form that supports the balance in the entire ecosystem.

a)

Keystone Species

b)

Herbivores

c)

Umbrella Species

d)

Predators

6.

A life form that affects an entire ecosystem.

a)

Keystone Species

b)

Herbivores

c)

Umbrella Species

d)

herbivore

7.

Biodiversity, refers to

a)

the same species in a general location

b)

the number of different species in a given area

c)

the number of animal species in a given area

d)

the number of plant species in a given area

8.

TRUE or FALSE? Invasive species can be introduced to an ecosystem intentionally (on purpose).

a)

True

b)

False

9.

Invasive species alter the ecosystem by _____ in number quickly. This leads to _____ food for the native species.

a)

increasing, less

b)

increasing, more

c)

decreasing, less

d)

decreasing, more

10.

What is a keystone species?

a)

A species that helps to hold an ecosystem together

b)

A species that lives in or around rocks

c)

Keys and stones have nothing to do with ecology

d)

A keystone isn't a living thing, it's just a stone

11.

Why are bees considered a keystone species?

a)

The honey they make supports the bear population

b)

They pollinate flowers that produce fruit which supports the ecosystem

c)

They sting when threatened

d)

They live in hives

12.
Based on the graph shown, what is the effect of removing a keystone species from an ecosystem?
a)
biodiversity goes up
b)
biodiversity goes down
c)
biodiversity stays about the same
d)
not enough information to tell
13.
Study the graph. Based on the data shown, rainbow smelt are a/an _____________.
a)
invasive species
b)
keystone species
c)
symbiotic species
d)
not enough information to tell
14.

in 1995 Wolves were reintroduced to Yellowstone National Park. Which answer below most accurately describes a possible trophic cascade the could result from the reintroduction of wolves?

a)

wolves reintroduced-> deer population increased -> tree and vegetation cover decreased

b)

wolves reintroduced-> beaver population decreased -> tree and vegetation cover increased

c)

wolves reintroduced-> deer population decreased -> tree and vegetation cover increased -> beaver population increased

d)

wolves reintroduced-> deer population decreased -> beaver population decreased -> songbird population increased

15.

What makes a species invasive?

a)

Moving to a new ecosystem and taking resources from natives

b)

Not having papers

c)

Species that can't adapt

d)

Plants that take up too much space

16.

Why do the populations of invasive species grow so quickly?

a)

Invasive Species are native to an area.

b)

Invasive species are prey to many animals.

c)

Invasive species have fewer limiting factors in their new environment

d)

Invasive species keep the ecosystems in equilibrium.

17.
Invasive species have a negative impact on...
a)
the ecosystem
b)
the economy
c)
Both the ecosystem and the economy
d)
None of these
18.
Based on the graph shown, zebra mussels are a/an _____________.
a)
invasive species
b)
keystone species
c)
not enough information to tell
d)
native species
19.
How can you tell that Zebra Mussles are an invasive species from the graph shown?
a)
The population of rotifers goes up after zebra mussels they are introduced.
b)
The population of rotifers goes down after zebra mussels are introduced.
c)
The population of rotifers stays about the same after zebra mussels are introduced.
d)
The population of zebra mussels goes down after they are introduced.
20.

Explain why the population of elk built up in Yellowstone.

a)

There were just a lot of them and so they reproduced quickly.

b)

There was lots of food for the elk in the park so they reproduced well.

c)

There was no natural predator to hunt them so they became over populated.

d)

No one is actually sure why this happened.

21.

What happened to the vegetation because of the elk population in Yellowstone?

a)

The elk ate it all, They reduced the vegetation to almost nothing, or they devoured it, leaving it bare.

b)

Nothing at all. the vegetation just grew as normal.

c)

A drought actually caused the vegetation to die and the elk trampled what was left.

d)

The elk ate some of it but lots of the vegetation remained.

22.

This is buffelgrass. Why is it considered invasive to the Sonoran Desert ecosystem?

a)

It outcompetes native plants for space and nutrients

b)

It causes harm to the ecosystem

c)

Its very flammable and is fuel for wildfires

d)

All are reasons why buffelgrass is invasive

23.

Why are American bullfrogs considered invasive species in the Sonoran Desert?

a)

They are non-native

b)

They disrupt the local ecosystem with no natural predators

c)

They carry pathogens (fungus sickness) that native frogs are not immune to

d)

All are reasons

24.

Why are American bullfrogs so successful in the Sonoran Desert

a)

No natural predators (nothing really eats them)

b)

They reproduce more than native frogs (up to 20,000 eggs compared to 2-3000 eggs)

c)

They prey on almost anything they can fit in their mouths

d)

All are reasons

25.

Saguaro cacti are a keystone species in the Sonoran Desert. What would happen to the ecosystem if the saguaro cacti are removed?

a)

The whole ecosystem will be disrupted

b)

People will just plant more saguaros

c)

Nothing will happen

26.
All energy on Earth ultimately comes from what source?
a)

Water

b)

Sun

c)

Consumers

d)

Oxygen

27.
An organism that needs to eat other organisms to obtain energy is known as a:
a)

Autotroph

b)

Producer

c)

Consumer

d)

Mutualist

28.
An organism that uses sunlight to create its own food is known as a:
a)
Producer
b)
Heterotroph
c)
Consumer
d)
Decomposer
29.
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.
30.
The arrows in a food chain or web represents what?
a)
They point to the organism that is being eaten.
b)
It shows how sunlight flows within an ecosystem.
c)
They show what direction the energy is flowing between organisms. 
d)
They represent how water is transferred within a habitat.
31.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
32.
Why might an organism have more than one arrow coming from them in a food web?
a)
More than one organism may eat them. 
b)
They may eat more than one other organism. 
c)
This organism gets its energy from multiple sources. 
d)
They have no resources available to them.
33.
The image provided is an example of a:
a)
Producer
b)
Heterotroph
c)
Consumer
d)
Decomposer
34.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
35.

Which organism gets energy from the grass?

a)

Plant

b)

Sun

c)

Deer

d)

Wolf

36.
Which of these organisms would receive energy from the snake?
a)
Plant
b)
Rabbit
c)
Mouse
d)
Hawk
37.
A community of living and nonliving things in their natural environment makes up a 
a)
food web
b)
ecosystem
c)
food chain
d)
population
38.

What makes up an environment?

a)

only biotic factors

b)

only abiotic factors

c)

both biotic and abiotic factors

d)

neither biotic nor abiotic factors

39.

Biotic factors are...

a)

living things

b)

non-living things

c)

undead things

40.

Abiotic factors are...

a)

living things

b)

non-living things

c)

undead things

41.

Some examples of biotic factors would be

a)

trees

b)

insects

c)

bacteria

d)

all of the above

42.

Which of these is NOT an abiotic factor?

a)

water

b)

temperature

c)

grass

d)

soil

43.

Which of the following is a biotic factor?

a)

humans

b)

bridges

c)

roads

d)

water

44.

Which choice is an example of a relationship between an abiotic factor and a biotic factor?

a)

sun shining on a tree

b)

bacteria infecting an organism

c)

a lion eating a zebra

d)

a bird eating seeds

45.

Biotic or abiotic?

a)

Biotic

b)

Abiotic

46.

Biotic or abiotic?

a)

Abiotic

b)

Biotic

47.
Temperature, light, air, water, and soil are all ___________ parts of the environment.
a)
biotic
b)
abiotic
c)
dead
d)
scavenged
48.

Is temperature a biotic or abiotic factor?

a)

biotic

b)

abiotic

49.
Which gas is removed from the atmosphere during photosynthesis?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
carbon dioxide
50.
In what part of the cell does photosynthesis occur?
a)
Nucleus
b)
Chloroplast
c)
Epidermis
d)
Vacuole
51.

What is cellular respiration?

a)

the breakdown of glucose to release ATP

b)

the breakdown of glucose to release carbon

52.
What is the correct equation for cellular respiration?
a)
6O2 + C6H12O6 -> 6CO2 + 6H2O + Energy
b)
6O2 + C6H12O6 + Energy -> 6CO2 + 6H2O
c)
6CO2 + 6H2O -> 6O2 + C6H12O6 + Energy
d)
6CO2 + 6H2O + Energy -> 6O2 + C6H12O6
53.

Which statement about photosynthesis is correct?

a)

Plants get the energy they need for photosynthesis from water.

b)

Plants get the energy they need for photosynthesis from soil.

c)

Plants get the energy they need for photosynthesis from sunlight.

d)

Plants do not require energy to perform photosynthesis.

54.

Which of the following is the correct equation for PHOTOSYNTHESIS?

a)

6CO2 + 6H2O → 6O2 + C6H12O6

b)

6CO2 + C6H12O6 + 6H2O → O2

c)

6O2 +6H2O → 6CO2 +C6H12O6

d)

C6H12O6 + 6O2 → 6H2O + 6CO2

55.

What gas is released by plants during photosynthesis?

a)

nitrogen

b)

carbon dioxide

c)

oxygen

d)

hydrogen

56.
What is the purpose of photosynthesis?
a)
make glucose
b)
make ATP
c)
make light
d)
release carbon dioxide
57.
In which way are photosynthesis and cellular respiration different?
a)
Cellular respiration stores ATP, while photosynthesis releases ATP.
b)
Cellular respiration produces oxygen, while photosynthesis uses oxygen.
c)
Photosynthesis releases energy, while cellular respiration stores energy.
d)
Photosynthesis used carbon dioxide, while cellular respiration produces carbon dioxide.
58.
Cellular Respiration's goal is to
a)
make water
b)
make ATP
c)
make glucose
d)
make  oxygen
59.

Select all that are inputs for Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

60.

Select all that are outputs of Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

61.

Select all that are outputs of Cellular Respiration.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

ATP (Cellular Energy)

e)

Glucose (Sugar/food)

62.

Select all that are inputs for Cellular Respiration.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

63.

Explain the how the process of photosynthesis and cellular respiration cycle matter

a)

The outputs of photosynthesis are the inputs for cellular respiration

b)

The inputs of photosynthesis are the inputs of cellular respiration

c)

The inputs of cellular respiration are the inputs of photosynthesis

d)

The outputs of cellular respiration are the outputs of photosynthesis

64.

If the amount carbon dioxide is increased what happens to the rate of photosynthesis?

a)

it increases

b)

it decreases

c)

it doesn't change

d)

it is not affected

65.

If the amount of glucose is increased for an animal cell, what will happen?

a)

the cell will produce less ATP

b)

the cell will produce no ATP

c)

the cell will produce more ATP

d)

the cell will produce the same amount of ATP

66.

DNA is made of ____ different bases.

a)

1

b)

2

c)

3

d)

4

67.

In DNA molecules, thymine (T) always pairs up with

a)

adenine (A)

b)

uracil (U)

c)

cytosine (C)

d)

guanine (G)

68.

In DNA molecules, cytosine (C) always pairs up with

a)

adenine (A)

b)

thymine (T)

c)

cytosine (C)

d)

guanine (G)

69.

DNA is made of smaller sections called

a)

genes

b)

cells

c)

organelles

d)

organisms

70.

Complete the DNA base pair in the image

a)

C

b)

A

c)

T

d)

G

71.

Complete the DNA base pair in the image

a)

C

b)

A

c)

T

d)

G

72.

Complete the DNA base pair in the image

a)

A T A

b)

T T T

c)

C G C

d)

T A T

73.

Why is DNA important?

a)

It teleports cookies to my locker.

b)

It carries the instructions for our cells.

c)

It allows me to be invisible.

d)

It gave us a snow day in August.

74.

In eukaryotes, which organelle is DNA usually found in?

a)

cell membrane

b)

vacuole

c)

chloroplast

d)

nucleus

75.

RNA has what base that is instead of thymine?

a)

guanine

b)

adenine

c)

thymine

d)

uracil

76.

The goal of transcription is to make RNA.

a)

True

b)

False

77.
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
78.
Which RNA bases would pair with TACGAA in transcription? 
a)
AUGCUU
b)
ATGCTT
c)
GCATCC
d)
GCAUCC
79.

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

80.

What is the process called when DNA is made into mRNA.

a)

translation

b)

transcription

c)

transcribe

d)

translate

81.
What does mRNA do?
a)
provides information from DNA to ribosomes
b)
transfers amino acids to the ribosomes
c)
makes up ribosomes
d)
builds proteins
82.
The codon is located on the 
a)
DNA
b)
mRNA
c)
tRNA
d)
rRNA
83.
Amino acids are the building blocks of...
a)
atoms
b)
DNA
c)
proteins
d)
a loving relationship
84.
Which amino acid is coded from the mRNA codon:
AGU
a)

Arginine

b)

Serine

c)

Leucine

d)

Glycine

85.
What is the correct amino acid for the following codon:
 GGU
a)
Gly
b)
Met
c)
Ser
d)
Ala
86.
Which is the organelle that makes proteins?
a)
Nucleus
b)
Ribosomes
c)
Rough ER
d)
Golgi Apparatus
87.
What is true about RNA?
a)
It is indestructible
b)
It can travel outside of the nucleus
c)
It has five nucleotides
d)
It contains twice as much thymine as DNA
88.
How many bases are in one codon?
a)
1
b)
2
c)
3
d)
4
89.

What does tRNA "transfer"?

a)

amino acids

b)

nucleic acids

c)

nucleotides

d)

AUG

90.

What is the correct sequence of protein synthesis?

A. tRNA brings amino acids to the ribosome

B. DNA molecules serve as the templates for mRNA.

C. mRNA molecules move to ribosomes.

D. Polypeptides are formed on ribosomes.

a)

A-B-C-D

b)

B-C-A-D

c)

C-B-A-D

d)

D-B-A-C

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