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Exam 16: Population Ecology

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Question 21

Multiple Choice

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In which type of population distribution would plot sampling be most accurate?

A) clumping
B) uniform
C) random
D) random and clumping
E) uniform and clumping

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Question 22

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Match the following figures with the most appropriate statement. <table style="font-family: 'times new roman'; font-size: 11pt; color: #000000; font-weight: normal; left:2px; top:19px; width:744px; height:489px;" summary="An illustration shows 3 graphs and 2 photos. The graph A with an accompanying photo of the sheep shows the horizontal axis that represents the percentage of lifespan from 0 to 100 with increments of 50. The vertical axis represents the numbers surviving from 0 to 1000 with 10 and 100 in between. The curve starts from 1000 at vertical axis moves steadily and then falls down to 100%. Pink dots are shown along the lines of the curve. The graph B with an accompanying photo of a desert shrub shows the horizontal axis that represents the percentage of life span from 0 to 100 with increments of 50. The vertical axis represents the numbers surviving from 0 to 1 million with 100 and 10,000 in between. The curve starts from 1million and falls down along the vertical axis to 100 and moves steadily towards the horizontal axis. Pink dots are shown along the lines of the curve. The graph C with an accompanying photo of a lizard shows the horizontal axis represents the percentage of life span from 0 to 100 with increments of 50. The vertical axis represents the numbers surviving from 0 to 1000 with 10 and 100 in between. A straight line is seen across the graph that begins at 1000 and ends at 100. Pink dots are seen along the line. The photo D shows a black fly laying eggs on a tomato. The photo E shows two whales swimming in the water."> A. B. C. D. E.

Premises

Responses

opportunistic life history

A

C

D

E

B

Premises

opportunistic life history

Responses

A

C

D

E

B

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Correct Answer

Premises

Responses

A

C

D

E

B

Premises

A

C

D

E

B

Responses

Question 23

Multiple Choice

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Which is a density-independent factor?

An epidemic facilitated by a high, dense population is an example of a(n) ____ factor.

Typically, members of a cohort are tracked ____.

A flood that washes away an entire population of rabbits is a(n) ____.

Match the following terms with the most appropriate statement.

Match the terms with the most appropriate statement.

Which group describes a population?

Density-independent controls over population growth include ____.

What is the major assumption of the exponential model of population growth?

Match the terms with the most appropriate statement.

India is in which demographic transitional stage?

  During phase "2" in the figure above, the growth is ____ as long as resources are plentiful.

A group of organisms of the same species that live in a specific location is called a(n) ____.

A population ecologist wants to estimate the size of a robin population. In an apple orchard, she captures 10 robins, marks them, and then releases them. She returns several weeks later and captures another 10 robins, of which 2 are robins she previously marked. The estimated population size of robins is ____.

  During phase "1" in the figure above, the size of the deer population grows slowly because ____.

It has been estimated that if everyone in the world had the same lifestyle as the average American, it would require ____ more Earths.

Refer to the following figure for questions 53, 54, and 55.   Letter "B" designates the ____, which allowed for an increase in human population growth.

In a population of Asian elephants, the death rate equals the birth rate. This population ____.