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Exam 16: Population Ecology

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Question 21

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The worldwide total fertility rate changed from __ children per woman to ___ children per woman.

A) 2.5...6.5
B) 6.5...2.5
C) 1.5...8.5
D) 8.5...1.5
E) 3.5...4.5

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Question 22

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Examine the figure above and answer the following question(s) . During the third phase "3", the population growth slows and then levels off because

A) essential resources become scarce.
B) the carrying capacity has been reached.
C) competition for food becomes increasingly important.
D) predators eat fawns as they are born.
E) all of these occur except "predators eat fawns as they are born."

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Question 23

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Which of the following is a density-dependent factor that would control the size of a population?

Which of the following factors is NOT a density-independent factor?

The exponential growth rate of a population under ideal conditions is its

Jellyfish are as likely to die at one age as any other. Thus, a type ___ survivorship curve characterizes their life history.

The number of individuals of the same species in some specified area or volume of habitat is the

Which of the following is NOT a factor that has led to a dramatic increase in the human population?

A change in a population that is NOT related strictly to the size of the population is best described as

Guppies preyed upon by Killifish are __ species.

Which of the following situations would NOT result in a clumped population distribution?

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

For a given population, life history pattern focuses on aspects such as

Horses typically can live around 30 years and a healthy mare can produce one foal per year. Horses are __ species.

Which of the following countries has the smallest ecological footprint?

In Michigan, the population of Canadian geese changed from 9,000 to a population of ___ in 2008.

The most sustainable method for limiting human population growth is

Examine the figure above and answer the following question(s) . This figure describes a typical example of

A population ecologist is study the demographics of American bison living on a grassland in North Dakota. She captures, marks, and releases 100 bison. Later, she recaptures 100 bison and discovers that 50 were previously marked and half of those marked are of reproductive age. What is the population ecologist's estimate of how many bison in the total population are of reproductive age?

In a population growing exponentially,