<span>The answer is Monarch butterflies migrating southward. This describes the innate animal behavior, </span>Monarch Butterflies perform one of the longest migration known in insects. Starting from North America, they spend their summer in North America, and migrate south to Mexico for the winter.<span>
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Alkalinity<span> is the name given to the quantitative capacity of an aqueous solution to neutralize an acid</span>
Do you mean ion pumps in the membrane of cell?
If so, then ion pumps maintain an electrochemical gradient across the membrane.
Answer:
C. Regulate how much carbon dioxide a country can emit
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