How Ecosystem Work Multiple Choice Test

Gas makes up our atmosphere but can be used by plants only when transformed by bacteria first

Describe the relationship between photosynthesis and cellular respiration

Nitrogen-fixing bacteria convert atmospheric nitrogen into

The highest organism on the food chain

If an insect eats a plant and a bird eats the insect, about how much energy from the plant is stored in the insect for the bird to use?

Growth of plants after a forest fire is an example of

Most of the Earth's carbon is secured in

Excessive algae growth in freshwater ecosystems is a direct result of

Which organisms are most likely to arise in areas experiencing primary succession?

The process of breaking down food to yield energy is called

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