Measuring Populations

Question 1

These two graphs represent _______ and _______ selection.

Revolt · Accepted Answer

stabilizing; disruptive

Question 2

Directional selection only occurs in response to naturally occurring events.

Revolt · Accepted Answer

F

Question 3

What are the three common patterns of population distribution?

Revolt · Accepted Answer

clumped, evenly spaced, and random

Question 4

Directional selection can be distinguished from disruptive selection by _______.

Revolt · Accepted Answer

selection for one extreme variation of a trait

Question 5

With regards to a “Data (Age) Structure Diagram”, which of the following is an indicator of a rapidly growing population?

Revolt · Accepted Answer

a large child population

Question 6

Natural selection is an evolutionary mechanism by which _______.

Revolt · Accepted Answer

advantageous traits become more common in a population

Question 7

Why do disruptive selection pressures tend to favor rapid evolutionary changes?

Revolt · Accepted Answer

They result in sudden gene frequency changes.

Question 8

Which of the following is not a reason for cluster distribution of organisms?

Revolt · Accepted Answer

territorial behavior

Question 9

Which of the following best describes the relationship between jaguars and panthers?

Revolt · Accepted Answer

Panthers are jaguars with predominantly dark or black pigmentation.

Question 10

Which of the following species would you most expect to be distributed according to a regular pattern?

Revolt · Accepted Answer

creosote bushes

Measuring Populations Answers