Where does gas exchange occur?
left ventricle
left atrium
trachea<...
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Individuals do not compete directly for resources, but are prey for the same predator
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Write a paragraph explaining how energy flows through an ecosystem using the following terms: energy pyramid, trophic level, producer, primary consumer, decomposer, sun, secondary consumer, and tertiary consumer. .
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Can sexual intercourse affect your body in any way that you are harmed?
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