Unit Review - Ecosystems

_______ is the largest number of individuals that an environment can support.

• carrying capacity

• limiting factor

• biodiversity

___________ are resources that restrict the size of a population.

• carrying capacity

• limiting factors

• biodiversity

______ are nonliving things in an ecosystem, such as air soil, water, and sunlight.

• abiotic factors

• biotic factors

• limiting factors

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_______ are living things in an ecosystem, such as plants, animals, bacteria and fungi.

• abiotic factors

• biotic factors

• limiting factors

The variety of life in the world or in a particular habitat or ecosystem

• limiting factors

• carrying capacity

• biodiversity

• biotic factors

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What would happen if a species reached its carrying capacity?

• the birth rate and death rate of the species would be equal

• the species could become endangered or possibly extinct

• the population of the species would keep increasing forever

• the species population would double in a short period of time

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Organisms that make their own food are called ______.

• autotrophs

• heterotrophs

Organisms that have to eat other organisms to gain energy and nutrients are called______.

• autotrophs

• heterotrophs

If a disease eliminated the snake population in the food chain shown, the frog population would ______.

• increase

• decrease

• stay the same

Tags

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If a disease eliminated the snake population in the food chain shown, the hawk population would ______.

• increase

• decrease

• stay the same

Tags

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