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Multiple Choice Feedback Quiz
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1

A group of individuals of a species that live together in a certain area are called a(n)
A)habitat.
B)population.
C)biosphere.
D)community.
2

The number of individuals added to the population minus the number lost from the population is the
A)realized rate of population increase.
B)innate capacity for increase.
C)biotic potential.
D)carrying capacity.
3

The number of individuals that can be supported in a given location is the
A)carrying capacity.
B)realized rate of population increase.
C)biotic potential.
D)innate capacity for increase.
4

An example of an organism fitting a type I survivorship curve is
A)an oyster.
B)a human being.
C)a hydra.
D)a frog.
5

The rate at which a population of a given species will increase when no limits are placed on its rate of growth is called the
A)density.
B)habitat.
C)biotic potential.
D)carrying capacity.
6

The relationship between ants and aphids on a plant is an example of
A)parasitism.
B)commensalism.
C)mutualism.
D)competition.
7

When two organisms attempt to utilize the same resource, the result is
A)a fundamental niche.
B)competition.
C)commensalism.
D)mutualism.
8

Two characteristics that promote biodiversity are the size of the ecosystem and
A)latitude.
B)population density.
C)carrying capacity.
D)biotic potential.
9

Ecosystems near the equator have greater biodiversity because they have
A)longer growing seasons.
B)more solar energy to pass on.
C)climatic stability.
D)all of the above
10

Human activities harm ecosystems by
A)disrupting physical habitats.
B)lowering species diversity.
C)reducing competition.
D)all of the above
11

Parasitism, once considered a symbiotic relationship, is now considered a form of predation.
A)true
B)false
12

Studies on Isle Royale show that wolves play a determining role in controlling the moose population.
A)true
B)false
13

Aposematic coloration is characteristic of animals with defensive poisons, stings, or bites.
A)true
B)false
14

A nontoxic organism whose coloration resembles that of a poisonous organism is an example of Batesian mimicry.
A)true
B)false
15

Succession that begins with an abandoned field is an example of secondary succession.
A)true
B)false
16

The predators prevent or greatly reduce competitive exclusion by reducing the numbers of individuals of competing species.
A)true
B)false
17

Weather is a density-independent effect.
A)true
B)false
18

The sigmoid growth curve is characteristic of most survivorship curves.
A)true
B)false
19

Mustard oils are toxic to humans but not insects.
A)true
B)false
20

The relationship between cattle egrets and an African cape buffalo is an example of commensalism.
A)true
B)false





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