Pretest

Question 1

In one year, 35 giraffes are born to a population. What does this number represent?

Revolt · Accepted Answer

D: birth rate

Question 2

Which two factors can both cause a population to increase?

Revolt · Accepted Answer

D: birth rate and immigration

Question 3

A square kilometer of forest has 200 deer. What is the term that is used to describe this number?

Revolt · Accepted Answer

A: population density

Question 4

Raccoons prefer woody areas and are omnivores, which means that they eat meat and plant materials. They are nocturnal, meaning that they are active at night. They are often eaten by mountain lions, gray wolves, and coyotes. Which of the following is a limiting factor for a raccoon population?

Revolt · Accepted Answer

B: deforestation

Question 5

Colorado has a vast population of lodgepole pines. A population of lodgepole pines has been killed in a section of the forest. What is a possible limiting factor of that population?

Revolt · Accepted Answer

A: devastation by the pine bark beetle

Question 6

Predict what might happen to a population that is experiencing little immigration and emigration, low birth rate, and high death rate.

Revolt · Accepted Answer

D: The population decreases.

Question 7

Which type of limiting factor affects a large population more than it affects a small population?

Revolt · Accepted Answer

B: density dependent

Question 8

A population of elephants becomes too large, and several members leave the population. What is this process called?

Revolt · Accepted Answer

C: emigration

Question 9

A population of cheetahs has a birth rate of 5 and a death rate of 15 Immigration is 2 , and emigration is 4 What is its population growth?

Revolt · Accepted Answer

C: negative 12

Question 10

The great hornbill and the toucan both eat the same fruit, insects, and nuts. They both live in the rainforest. Their large bills function to get food and also as warning coloration. Which of the following is a limiting factor to the toucan population?

Revolt · Accepted Answer

C: competition

Pretest Answers

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