The answer should be B). Helpful traits passed to the next generation through reproduction.
B is correct because in natural selection, if a population cannot adapt over time it will be “naturally selected” and die off, or be near extinction due to non-adaptive ness. Hope this helped!
Answer: "homeostasis" .
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Answer:
Active transport: movement against a gradient To move substances against a concentration or electrochemical gradient, a cell must use energy. Active transport mechanisms do just this, expending energy (often in the form of ATP) to maintain the proper concentrations of ions and molecules in living cells.
<span>A point mutation that results in the substitution of one amino acid for another within a protein is a missense mutation.
</span>This type of mutation<span> is a change in one DNA base pair that results in the substitution of one amino acid for another in the protein made by a </span>gene<span>. </span>