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In a growing population, in the population growth model, as the population (N) gets close to the carrying capacity (K), the rate of population growth (dN/dt)

Question 2

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In the population growth model, what happens to the population size when the birth rate is much larger than the death rate?

Question 3

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Correct

In the population growth model, the initial size of a population ______ affect the carrying capacity of the environment.

Question 4

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Consider Predator-Prey Model 1, in the plots of population versus time, what do the peaks in the prey population graph signify?

Question 5

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In Predator-Prey Model 1, what causes the peaks in the prey population (i.e., what causes the prey population to stop increasing in size and start decreasing in size)?

Question 6

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In Predator-Prey Model 1, as the predator population continues to increases, the prey population will eventually begin to ____.

Question 7

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When the predator population is above the prey isocline, the prey population is:

Question 8

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When the prey population is below the predator isocline, the predator population is:

Question 9

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Given that the Predator-Prey Model 2 combines aspects of the Population Growth model and the Predator-Prey 1 model, can you determine what is causing the fluctuations? Can you figure out what causes the populations to eventually stabilize at zero population growth?

Question 10

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In Predator-Prey Model 2, what is the ultimate response of both populations to the sudden loss of either prey or predators?

Question 1

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In the population growth model, dN/dt is a measure of --------------------.

Question 2

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In the population growth model, what happens if the death rate exceeds the birth rate?

Question 3

3 out of 3 points

Correct

In the population growth model, what is the effect of equal rates of birth and death?

Question 4

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In Predator-Prey Model 1, why are the predator and prey growth curves out of phase?

Question 5

3 out of 3 points

Correct

In Predator-Prey Model 1, what causes the peaks in the prey population (i.e., what causes the prey population to stop increasing in size and start decreasing in size)?

Question 6

3 out of 3 points

Correct

Consider Predator-Prey Model 1, in the plots of population versus time, what do the peaks in the prey population graph signify?

Question 7

3 out of 3 points

Correct

When the prey population is below the predator isocline, the predator population is:

Question 8

3 out of 3 points

Correct

When the predator population is below the prey isocline, the prey population is:

Question 9

3 out of 3 points

Correct

Given that the Predator-Prey Model 2 combines aspects of the Population Growth model and the Predator-Prey 1 model, can you determine what is causing the fluctuations? Can you figure out what causes the populations to eventually stabilize at zero population growth?

Question 10

3 out of 3 points

Correct

In Predator-Prey Model 2, what is the ultimate response of both populations to the sudden loss of either prey or predators?

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