Answer:
Wind will blow from on location to another.
Explanation:
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Its stabilising. Since the selection pressure is against the extremes which are the normal blood and the sickle cell anaemia.
Answer: Rebekah is studying [C-nucleic acids].
Explanation: This is since both DNA (DeoxyriboNucleic Acid) and RNA (RiboNucleic Acid) contain nucleic acids, as their names show.