Ecology Regents

Organisms that feed exclusively on other animals,example - a fox.

• Herbivore

• Omnivore

• Carnivore

• Heterotroph

The interactions of living organisms and non-living factors within an area.

• Ecosystem

• Population

• Biosphere

• Climax Community

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Humans have an effect on ecosystems when they use native grasslands or forested areas for farming or urban use. One negative effect of these changes on the ecosystem is that there will be

• Less biodiversity

• More homes

• Successful economic growth

• Increased food production

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Based on this information, which ecosystem is likely to be the most stable?

• A

• B

• C

• D

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The organisms represented by X are

• Decomposes

• Producers

• Carnivores

• Scavengers

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Energy comes from the Sun and is made usable by _________.

• producers

• primary consumers

• decomposers

• autotrophs

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Most energy is ______ before it can be passed to the next step in the food chain.

• used

• saved

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Organisms high on the food chain have _____ energy available to them and must have _____ populations.

• more, larger

• less, smaller

• more, smaller

• less, larger

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What environmental factor can determine the which organisms can live in an ecosystem and how large the population can get?

• air

• water

• light

• food

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Carrying capacity means

• the minimum size of a population

• the maximum size of a population