Answer:
A.
Explanation:
Macro molecules meaning large sized molecules are broken down into micromolecules meaning small sized ones.
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Short-term environmental changes cause changes in genetic makeup.
Short-term environmental changes do not happen suddenly with little warning.
Short-term environmental changes can occur in minutes to hundreds of years.
Short-term environmental changes do not affect organisms within an ecosystem.
Short-term environmental changes immediately affect organisms in the environment.