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Unit 2 Exam: Ecology and Evolution Review

Total questions: 74

Worksheet time: 39mins

Name
Class
Date
1.

When more than one individual or population tries to use the same limited resource.

a)

Competition

b)

Resource

c)

Abiotic

d)

Population

2.

A lion is a good example of a (an)...

a)

limiting factor

b)

abiotic

c)

predator

d)

prey

3.

The numbers of predators and prey often follow cyclic ____ over time.

a)

biotics

b)

ecosystems

c)

patterns

d)

limits

4.

Which of the following could be a limiting factor for a cat?

a)

too many trees

b)

just enough heat

c)

not enough water

d)

not enough dogs

5.

All the members of one species living in a particular area at a particular time.

a)

abiotic

b)

population

c)

resource

d)

competition

6.

All the biotic and abiotic factors in an area, and the interactions among them make up an ...

a)

ecosystem

b)

carrying capacity

c)

resource

d)

limiting factor

7.

Competition is when two organisms need the same ...

a)

ecosystem

b)

biotic

c)

resource

d)

population

8.

Some moth and flower species have evolved so that they depend on each other in a relationship in which they both

benefit, this is called _________________.

a)

gradualism

b)

Archaeopteryx

c)

bottleneck

d)

coevolution

9.

A plant’s leaves are green because the color green is _________________back to our eyes.

a)

Absorbed

b)

Reflected

c)

Transmitted

d)

None of the Above

10.

What part of the leaf is responsible for absorbing the sun’s energy?

a)

Cell Wall

b)

Veins

c)

Chlorophyll

d)

Nucleus

11.

The stoma on the underside of the leaf allows ___________ to move in and out of the leaf.

a)

Gases

b)

Water

c)

Nutrients

d)

Soil

12.

Glucose is a type of _______________.

a)

Dairy Product

b)

Protein

c)

Salt

d)

Sugar

13.

Sun’s radiant energy falls under which part of the electromagnetic spectrum?

a)

Ling-Waves

b)

Gamma Rays

c)

Visible Light

d)

X-Rays

14.

Photosynthesis happens both during the day and night in plants.

a)

True

b)

False

15.

What are the products of photosynthesis?

a)

carbon dioxide and glucose

b)

oxygen and glucose

c)

water and carbon dioxide

d)

oxygen and carbon dioxide

16.

What do plants need for the photosynthesis process?

a)

soil, air, and oxygen

b)

light, carbon dioxide, and water

c)

roots, flowers, and bees

d)

camera and a tripod

17.

What part of the leaf allows Carbon dioxide in and oxygen out of the leaf?

a)

Stomata

b)

Xylem

c)

Pholem

d)

Chlorophyll

18.

__________ energy from the sun is changed into __________ energy during photosynthesis

a)

Electrical, Light

b)

Chemical, Light

c)

Physical, Chemical

d)

Light, Chemical

19.

Which part of the plant transports nutrients from the leaves to the rest of the plant?

a)

Stoma

b)

Phloem

c)

Chloroplast

d)

Chlorophyll

20.

The ____________ is the most photosynthetic part of a plant.

a)

Trunk

b)

Flower

c)

Stem

d)

Leaf

21.

The vascular tissue of the plant that transports water is the...

a)

roots

b)

stems

c)

xylem

d)

phloem

22.

Which of the following is the correct equation for PHOTOSYNTHESIS?

a)

CO2 + O2 + H2O --> Light+ Sugar

b)

O2 + light + H2O --> CO2 + Sugar

c)

CO2 + light + H2O --> O2 + Sugar

d)

CO2 + sugar + H2O --> O2 + light

23.

Which gas is removed from the atmosphere during photosynthesis?

a)

Argon

b)

Oxygen

c)

Methane

d)

Carbon Dioxide

24.

What is photosynthesis?

a)

The process in which humans eat their food

b)

When a photographer takes a photo.

c)

The process in which plants make their food.

d)

To get your pictures from the photo lab.

25.

If all four plants were watered daily but placed in a closet, receiving no sunlight, what process would NOT occur?

a)

Photosynthesis

b)

Respiration

c)

Water absorption

d)

Ingestion of Carbon Dioxide

26.

Organisms that can make their own food are called

a)

Consumers

b)

Producers

c)

Omnivores

d)

Decomposers

27.

Producers get their energy from

a)

coffee

b)

the soil

c)

water

d)

the sun

28.

Organisms that have to eat other organisms are called

a)

producers

b)

autotrophs

c)

consumers

d)

prey

29.

Another word for producer is

a)

autotroph

b)

heterotroph

c)

carnivore

d)

decomposer

30.

An organism that cannot make its own food is called a(n)

a)

autotroph

b)

heterotroph

c)

producer

31.

___% of energy is passed from one organism to another.

a)

1

b)

10

c)

100

d)

1000

32.
Which animal is the apex predator?
a)
hawk
b)
lizard
c)
snake
d)
grass
33.
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%
34.
An organism that gets energy from breaking down dead organisms, non-living material or waste is a(an) ___________.
a)
producer
b)
consumer
c)
decomposer
d)
autotroph
35.

What is the carrying capacity of the graph?

a)

1000

b)

8000

c)

800

d)

600

36.

What happens if a population grows past its carrying capacity?

a)

The population keeps growing

b)

The population starts to die off

c)

The entire species will go extinct

d)

The carrying capacity just increases

37.

This may cause a population to increase

a)

increase of food supply

b)

removal of predators

c)

removal of disease

d)

all of these

38.

Something that regulates the size of a population is called...

a)

a limiting measure

b)

a limiting factor

c)

carrying capacity

d)

biodiversity

39.

What is the carrying capacity of the graph?

a)

around 500

b)

more than 800

c)

less than 300

d)

around 700

40.
Which of the following would INCREASE the carrying capacity of an ecosystem?
a)
increase in predators
b)
disease
c)
increase in available food
d)
drought
41.

When death rate is equal to birth rate...

a)

population increases

b)

population decreases

c)

population stays the same.

d)

population rapidly increases then becomes stable

42.

When death rate is equal to birth rate...

a)

population increases

b)

population decreases

c)

population stays the same.

d)

population rapidly increases then becomes stable

43.

When the death rate rises and the birth rate lowers...

a)

population increases

b)

population decreases

c)

population stays the same

d)

all of these

44.

When birth rate is high and death rate is low...

a)

population increases

b)

population decreases

c)

population stays the same

d)

all of these

45.

What is an Abiotic Factor?

a)

A NON-living factor that can affect an ecosystem

b)

A living factor that can affect an ecosystem

c)

The carrying capacity of an ecosystem

46.

What is a Biotic Factor?

a)

The carrying capacity of an ecosystem

b)

A NON-living factor that can affect an ecosystem

c)

A living factor that can affect an ecosystem

47.

Check all of the boxes that show examples of biotic factors.

a)

Rain

b)

Humans hunting

c)

Predators

d)

Wildfire

48.

Check all of the boxes that are examples of abiotic factors.

a)

Prey

b)

Rainfall

c)

A pack of wolves

d)

A tornado

49.

What is a limiting factor?

a)

Factors that always increase a population

b)

Factors that always decrease a population

c)

Resources that are unlimited

d)

Factors/resources that limit how many organisms can live in an area at the same time

50.

Can a population go over its carrying capacity?

a)

Yes

b)

No

c)

Maybe

51.

What happens if a population goes over its carrying capacity?

a)

It will continue to grow

b)

It will eventually decrease due to a lack of resources

c)

It will die immediately

d)

It will get unlimited resources

52.

Choose the 4 limiting factors.

a)

Food

b)

Water

c)

Time

d)

Space

e)

Shelter

53.

Which of the following would cause an increase in the omnivore population?

a)

Increase in carnivores

b)

Humans hunting

c)

Increase in rain

d)

Increase in competition

54.

What is the overall trend of this population graph?

a)

Increasing

b)

Decreasing

c)

Constant

d)

No trend

55.

What can cause a population to grow?

a)

The birthrate become higher than the death rate

b)

The birthrate stays the same, and the death rate increases

c)

The birthrate becomes lower than the death rate

d)

The birthrate and death rate remain the same

56.

Which would be least likely to be affected by a density-dependent limiting factor?

a)

a small, scattered population

b)

a population with a high birthrate

c)

large, dense population

d)

a population with a high immigration rate

57.

Number of Deaths 10

Number of Births 15

Immigration 3

Emigration 4


Does the population increase or decrease?

a)

Increase

b)

Decrease

58.

Number of Deaths 10

Number of Births 15

Immigration 3

Emigration 4


How much does the population increase by?

a)

5

b)

4

c)

18

d)

16

59.

Check the Density dependent factors

a)

a hurricane reduces the spider monkey population

b)

wolves capture and consume deer

c)

two male cardinals compete for the same female

d)

a disease wipes out 25% of the gopher population

60.

Check the Density independent factors

a)

a hurricane reduces the spider monkey population

b)

wolves capture and consume deer

c)

two male cardinals compete for the same female

d)

a disease wipes out 25% of the gopher population

61.

What type of growth chart is this?

a)

Exponential

b)

Logistic

62.

What type of graph is this?

a)

Exponential

b)

Logistic

63.
An organism that is killed and eaten by another organism
a)
Predator
b)
Prey
c)
Competition
d)
Adaptation
64.
Barn owls hunt shrews. In this example what is a barn owl?
a)
Herbivore/Predator
b)
Carnivore/Prey
c)
Carnivore/Predator
65.
Which of the following would be considered to be prey?
a)
an animal that has to hunt for its food
b)
an animal that is eaten by another animal
c)
an organism that makes it own food
d)
an organism that feeds on the blood of another animal
66.

Both species benefit

a)

symbiosis

b)

parasitism

c)

mutualism

d)

commensalism

67.

One species benefits, the other is unaffected

a)

symbiosis

b)

parasitism

c)

mutualism

d)

commensalism

68.

One species benefits, the other species is harmed

a)

symbiosis

b)

parasitism

c)

mutualism

d)

commensalism

69.

Barnacles create home sites by attaching themselves to whales. As the barnacle is a filter feeder, it also gets access to more water (and more food) due to the relationship. Whale is unaffected.

a)

symbiosis

b)

parasitism

c)

mutualism

d)

commensalism

70.

Ostriches and gazelles feed next to each other. They both watch for predators. Because the visual abilities of the two species are different, they can each identify threats that the other animal may not see as readily.

a)

symbiosis

b)

parasitism

c)

mutualism

d)

commensalism

71.

Mistletoe extracts water and nutrients from the spruce tree to the detriment (ill effect) to the spruce

a)

symbiosis

b)

parasitism

c)

mutualism

d)

commensalism

72.

Tapeworms reside in human intestine and take nutrients from the human

a)

symbiosis

b)

parasitism

c)

mutualism

d)

commensalism

73.

E. Coli is a bacteria that lives in the gut of humans. The human provides the ideal habitat for e coli reproduction and the e coli provides the extra vitamin K that we use.

a)

symbiosis

b)

parasitism

c)

mutualism

d)

commensalism

74.

Oxpeckers (bird) feed on the ticks found on a rhinoceros. The oxpecker gets food and the rhino gets rid of a parasite

a)

symbiosis

b)

parasitism

c)

mutualism

d)

commensalism

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