The correct answer is: [A]: "tropical rain forest" .
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Not exactly sure, but maybe because the powder might have something important like dna.<span />
The answer should be 4. All of the above.
Specific proteins in the body control the chemical reactions of metabolism, and each chemical reaction is coordinated with other body functions. In fact, thousands of metabolic reactions happen at the same time — all regulated by the body — to keep our cells healthy and working.
This is true. In biology a key is used to identify a plant or animal.
These keys will depend upon certain characteristics that can be used to
determine which part of the animal kingdom an organism belongs to.
