Determining Population Size Answers

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New Zealand has a population of 4,326,380 and has an area of 103,736 mi while Australia has an area of 2,967,909 mi and a population of 21,905,140. Explain how New Zealand can have a larger population density than Australia even though it has a smaller total population.

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Yellowstone National Park has 124 wolves living in it. The park covers 3472 square miles. What is the population density of wolves living in Yellowstone?

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A
28 wolves/mi
B
0.0357 wolves/mi
C
82 wolves/mi
D
43 wolves/mi
3

How does a logistic growth curve differ from an exponential growth curve?

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4

Explain how the method of mark and recapture works to determine population size.

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5

Describe the sampling method for determining population size.

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6

New Zealand has a population of 4,326,380 and has an area of 103,736 mi while Australia has an area of 2,967,909 mi and a population of 21,905,140. Calculate the population density for New Zealand and Australia. Round the population densities to the nearest whole number.

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7

Which of the following statements about logistic growth curves is true?

A
Logistic growth curves are common for R-selected species.
B
Logistic growth curves are J-shaped.
C
No organisms in nature experience logistic growth rates.
D
Logistic growth curves increase exponentially at first, then experience slowed growth rates.
8

Population density is calculated by _______.

A
dividing the number of organisms in a region by the land area
B
multiplying the number of organisms in a region by the land area
C
dividing the land area by the number of organisms in the region
D
by subtracting the land area from the number of organisms in a region
9

Direct observation is the simplest and most effective method to determine population size.

A
T
B
F
10

A S-shaped curve is called a(n) _______.

A
logistic growth curve
B
exponential growth curve
C
linear growth curve
D
population growth curve

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