Unit 4 Test Review

Front

What is a population in ecological terms?

Back

A population refers to a group of individuals of the same species that live in a specific area and can interbreed.

Front

Provide an example of a population.

Back

All the yellow perch in Lake Leffert.

Front

How is the growth rate of a population calculated?

Back

Growth rate is calculated as Births - Deaths.

Front

What does a negative growth rate indicate?

Back

A negative growth rate indicates that the number of deaths exceeds the number of births in a population.

Front

What is the significance of a zero growth rate?

Back

A zero growth rate means that the population size remains constant over time, with births equaling deaths.

Front

If a population has more deaths than births, what type of growth rate does it have?

Back

It has a negative growth rate.

Front

How long will it take for elephants to produce 19 million offspring if their growth rate is low?

Back

It will take approximately 750 years.

Front

What was the growth rate in 2005 if it was recorded as 0?

Back

The growth rate in 2005 was zero, indicating no change in population size.

Front

What factors can influence the growth rate of a population?

Back

Factors include birth rates, death rates, immigration, and emigration.

Front

Define carrying capacity in ecology.

Back

Carrying capacity is the maximum number of individuals of a species that an environment can sustainably support.