Pretest Answers

10 verified answers2 views
2
Free Preview

The overall population of a species has increased. What could have occurred to allow this to happen?

A
The birth rate of the population is less than the death rate.
B
The immigration of the population is greater than the emigration.
C
The death rate of the population is greater than the immigration.
D
The emigration rate is greater than the death rate.
3

Which is the change in size of a group of organisms of the same species over time?

A
population growth
B
immigration and emigration
C
death rate
D
birth rate
7

Deer need food and water to survive. What are food and water for the deer population?

A
scarce resources
B
carrying capacity
C
population growth
D
limiting factors
8

What do birth rate, death rate, immigration, and emigration determine about a population?

A
population growth
B
carrying capacity
C
limiting factors
D
population type
9

In a year, a population of lions had four births, two deaths from disease, one natural death, five emigrations, and five immigrations. In the same year, a population of zebras had five births, three deaths, four emigrations, and one immigration. Which best explains the data?

A
Zebras and lions are both experiencing a positive population growth.
B
Zebras and lions are both experiencing a negative population growth.
C
The zebras have a higher population growth than the lions have.
D
The zebras have a lower population growth than the lions have.
10

If a population of deer exceeds its carrying capacity, it is likely that the

A
population will crash.
B
carrying capacity will increase.
C
birth rate will increase.
D
population will become extinct.

Did you find these answers helpful?