Population Size Answers

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Which of the following is not a factor in determining population size?

the food supply

birth rate

available niches

detritivore activity

Which of the following statements is true?

Biotic factors are nonliving components of an ecosystem.

Abiotic factors are living components of an ecosystem.

The available space in an ecosystem is an abiotic limiting factor.

The available water supply in an ecosystem is a biotic limiting factor.

R-selected species have a short life span and an early reproduction cycle.

Which of the following is an example of an even population distribution?

corn planted in a field

flocks of birds

people in a park

deer in a forest

Which of the following statements is true?

Biotic factors are nonliving components of an ecosystem.

Abiotic factors are living components of an ecosystem.

The available space in an ecosystem is an abiotic limiting factor.

The available water supply in an ecosystem is a biotic limiting factor.

How does population density differ from population size?

Population size takes all organisms into account, while population density only takes specific age groups of the population into account.

Population size is the total number of organisms, while population density is the total number of organisms within a given area.

Population size is the total number of organisms within a given area, while population density is the total number of organisms of a specific age.

Population size is the total number of organisms of all species, while population density is the total number of organisms of a specific species.

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