AnswersEnvironmental Science AMeasuring Populations

Measuring Populations Answers

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

A
localized availability of resources
B
herd behavior
C
hive behavior
D
territorial behavior
3

Which of the following is the most obvious sign of cluster distribution in termites?

A
They are insects.
B
They are detritivores.
C
They are social insects.
D
Many species of termites are considered pests.
4

Disruptive selection events select for _______.

A
common traits
B
genetic uniformity
C
camouflage traits
D
extreme traits
6

These two graphs represent _______ and _______ selection.

Question illustration
A
directional; stabilizing
B
stabilizing; disruptive
C
disruptive; static
D
static; directional
7

Natural selection is an evolutionary mechanism by which _______.

A
advantageous traits are eliminated in a population
B
advantageous traits become more common in a population
C
inherited traits pass consistently through generations
D
organisms choose which traits to look for in their offspring
9

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

A
a large elderly population
B
a large middle age population
C
a large teenage population
D
a large child population
10

Stabilizing selective pressures result in _______.

A
rapid, broad evolutionary changes
B
limited evolutionary changes
C
an increase in genetic diversity
D
extreme gene distributions
12

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

A
a large elderly population
B
a large middle age population
C
a large teenage population
D
a large child population
14

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

A
termites
B
stingless bees
C
fish
D
creosote bushes
15

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

A
localized availability of resources
B
herd behavior
C
hive behavior
D
territorial behavior
16

Directional selection can be distinguished from disruptive selection by _______.

A
the elimination of extreme variations of traits
B
selection for two extreme variations of a trait
C
the preservation of gene frequencies
D
selection for one extreme variation of a trait
17

Directional selection can be distinguished from disruptive selection by _______.

A
the elimination of extreme variations of traits
B
selection for two extreme variations of a trait
C
the preservation of gene frequencies
D
selection for one extreme variation of a trait
18

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

A
Panthers and jaguars are separate species.
B
Panthers are jaguars with predominantly dark or black pigmentation.
C
Juvenile jaguars are black and called panthers.
D
During winter Jaguars’ coats change from spotted to black.
19

What are the three common patterns of population distribution?

A
clumped, random, and curved
B
evenly spaced, clumped, and curved
C
clumped, evenly spaced, and random
D
random, curved, and evenly spaced
20

Stabilizing selective pressures result in _______.

A
rapid, broad evolutionary changes
B
limited evolutionary changes
C
an increase in genetic diversity
D
extreme gene distributions

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