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AP BIO UNIT 8

Total questions: 30

Worksheet time: 20mins

Name
Class
Date
1.

What type of growth is shown in the diagram?

a)

exponential growth

b)

logistic growth

c)

predator-prey cycle

d)

boom-bust curve

2.

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

a)

carrying capacity

b)

population

c)

biome

d)

mutualism

3.

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

4.

If a disease destroying wheat plants in a field swept through an ecosystem, what would happen to the bird population that feed off of the wheat in the the field ?

a)

The bird population would stay the same

b)

The bird population would increase

c)

The bird population would decrease

5.
Any thing or organism that regulates the size of a population of another organism is known as __________.
a)
a limiting measure
b)
a limiting factor
c)
factorization
d)
materialization of precipitation
6.
Which of the following best explains why there are seldom more than five trophic levels in a food chain?
a)
Most carnivores function at more than one trophic level
b)
Trophic levels about this numbers contain too many individuals
c)
Energy is lost from each trophic level
d)
The ecosystem contains too much biomass
7.
Which of the following is a primary consumer in this food web?
a)
Foxes
b)
Carrots
c)
Mice
d)
Owls
8.
Which point on the graph represents carrying capacity?
a)
A
b)
B
c)
C
d)
D
9.
Nitrogen Fixation is carried out by
a)
bacteria 
b)
plants
c)
herbivores
d)
mushrooms
10.

If the larvae of a particular species of mosquito are to survive to the adult stage, the eggs must be laid in the trapped pool of water of the northern pitcher plant. The mosquito larvae provide no apparent benefit or harm to the pitcher plant. This type of interaction is an example of

a)

commensalism

b)

mutualism

c)

parasitism

d)

competition

11.
A group of interbreeding individuals occupying the same area is best called
a)
community
b)
population
c)
ecosystem
d)
symbiotic relationship
12.
A species that exerts a large, positive impaction on its ecosystem is known as a:
a)
Keystone species
b)
Invasive species
c)
Indicator species
d)
Poached species
13.

Organisms with low birthrates and increased care of young, would follow which of the following survivorship curves?

a)

Type I

b)

Type II

c)

Type III

14.

Scientists found, that over a period of 200 years, a mountain pond was transformed into a meadow. During that time, several communities of organisms were replaced by different communities. What is this process called?

a)

limiting factors

b)

climax community

c)

pioneer organism

d)

ecological succession

15.

Predator population lags behind prey population because......

a)

Increase in predators leads to decrease in prey

b)

Increase in predators leads to increase in prey

c)

Increase in predators leads to decrease in producers

d)

Increase in producers leads to increase in prey

16.

There are 300 falcons living in a certain forest at the beginning of 2013. Suppose that every year there are 50 falcons born and 30 falcons that die.


What is the population growth rate (include units)? Interpret the value.

a)

100

b)

50

c)

20

d)

10

17.

Researchers used the mark-recapture method to estimate the number of individuals in a population. Using the results presented in the table below, estimate the total number of individuals in the population. Give your answer to the nearest whole number.

a)

50

b)

250

c)

400

d)

450

18.
What type of growth is shown on this graph?
a)
logistic
b)
exponential
c)
average
d)
density-independent
19.

If the producer level of an ecosystem has 750,000 J of energy, how much energy would be passed on to the secondary consumers?

a)

75,000 J

b)

7,500 J

c)

750 J

d)

75 J

20.

Which of the following pose a threat to biodiversity? Choose all that apply.

a)

invasive species

b)

habitat destruction

c)

population growth

d)

pollution

21.

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

22.
Which of the following statements is true of the phosphorus cycle?
a)
Phosphorus enters the atmosphere as phosphates.
b)
The phosphorus cycle utilizes the processes of erosion, and weathering.
c)
Phosphates are used in carbohydrate and glucose storage.
d)
The phosphorus cycle utilizes bacteria to breakdown phosphates and make them available for plants.
23.

how a behavior occurs or how it is modified

a)

Proximate Cause

b)

Ultimate Cause

c)

Innate Behavior

d)

Learned Behavior

24.

why a behavior occurs (in context of natural selection)

a)

Proximate Cause

b)

Ultimate Cause

c)

Innate Behavior

d)

Learned Behavior

25.

Hereditary, born behaviors, do not need to learn them

a)

Proximate Cause

b)

Ultimate Cause

c)

Innate Behavior

d)

Learned Behavior

26.

Experiences DO affect these behaviors

a)

Proximate Cause

b)

Ultimate Cause

c)

Innate Behavior

d)

Learned Behavior

27.

movement in response to light

a)

Geotaxis

b)

Chemotaxis

c)

Phototaxis

28.

a regular, long-distance change in location

a)

Proximate Cause

b)

Migration

c)

Kinesis

d)

Taxis

29.

movement in response to chemical signals

a)

Chemotaxis

b)

Phototaxis

c)

Geotaxis

30.

What is a fixed action pattern?

a)

Innate, highly stereotypic behavior, which when begun is continued to completion

b)

evolutionary reason for behavior

c)

the cause of a behavior

d)

scientific study of how animals behave