It is d. If it was adaptation, the organism would have stayed in order to adapt. The species moved in order to not go extinct. It can not be speciation, because a new species was not made. It is stimulus. It experienced too much heat, so it left.
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The concentration of a substance is the quantity of solute present in a given quantity of solution.
Answer:
Every ecosystem is made up of a variety of living and nonliving things. The living things within an ecosystem depend on each other to obtain their energy.
Explanation:
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the answer is moon. the name tells you what you can't see. since in a solar eclipse you can't see the sun that means that the moon is in between us on earth and the sun. which is why we can't see it
