living environment

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Genetic material is stored in the

The ability of humans to find new cures for cancer among the rain forest plantsis reduced by

The storage of energy in ATP is part of which process?

The ability of testosterone to affect certain cells depends on

Genetic variation results from

A liver cell of a human can make different enzymes from a heart cell because liver cells

Animals cells do not have

In cells, metabolic wastes are excreted by the