Question

Identify examples of evidence that a population has a size that is density dependent.

1- The number of progeny per adult decreases as population density increases.

2- A population is devastated by extremely cold temperatures every few years.

3- The maximum population limit increases as population density decreases.

4- A change in a population's size exhibits exponential or geometric growth.

5- A population's resources and potential mates are insufficient for all individuals.

Answer 1

Answer Density dependent of a population can be affected by factor that affect birth and death rate of population such as by predation, competition.

examples of evidence that a population has a size that is density dependent are

1- The number of progeny per adult decreases as population density increases. because population is dependent upon progeny decrease.

3- The maximum population limit increases as population density decreases. Because it depend upon population limit

4- A change in a population's size exhibits exponential or geometric growth. this is because population density is depend upon its growth.

Example of Density independant

2- A population is devastated by extremely cold temperatures every few years. It is density independant because cold temperature is a abiotic factor.

5- A population's resources and potential mates are insufficient for all individuals. because resource like food availability play a role