Population Size

Question 1

Which of the following statements is true?

Revolt · Accepted Answer

The available space in an ecosystem is an abiotic limiting factor.

Question 2

Which of the following species is a K-selected species?

Revolt · Accepted Answer

Redwood trees

Question 3

A population’s distribution can be even, clumped, or random.

Revolt · Accepted Answer

T

Question 4

R-selected species have a short life span and an early reproduction cycle.

Revolt · Accepted Answer

T

Question 5

Which of the following factors would have the least effect on the carrying capacity of an ecosystem?

Revolt · Accepted Answer

competitive exclusion

Question 6

Which of the following is not a factor in determining population size?

Revolt · Accepted Answer

detritivore activity

Question 7

Identify the biotic limiting factor from the choices below.

Revolt · Accepted Answer

vegetation

Question 8

Lions live in groups called prides. Lion populations would most likely fall in which category of population distribution?

Revolt · Accepted Answer

clumped

Question 9

When two species compete for the same ecological niche, they cannot coexist because they are competing for the exact same resources. One species is always slightly better adapted for the niche than the other, so over time the disadvantaged species will either go extinct or shift to a different ecological niche. This situation highlights the concept of _______.

Revolt · Accepted Answer

competitive exclusion

Question 10

Migration is _______.

Revolt · Accepted Answer

the seasonal movement of organisms between locations

Population Size Answers

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