AnswersVA-Ecology -CRPR 26-27 MC S1Freshwater and Marine Biomes

Measuring Populations Answers

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1
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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.
2
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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
3

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
4

These two graphs represent _______ and _______ selection.

Question illustration
A
directional; stabilizing
B
stabilizing; disruptive
C
disruptive; static
D
static; directional
5

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.
6

The rarest distribution pattern in nature is random.

A
T
B
F
7

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
8

Stabilizing selective pressures result in _______.

A
rapid, broad evolutionary changes
B
limited evolutionary changes
C
an increase in genetic diversity
D
extreme gene distributions
9

Stationary population pyramids are representative of countries with shorter than average life expectancies.

A
T
B
F
10

The native range of a species includes all areas in which it lives.

A
T
B
F

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