A to move around is the answer
Answer:
Temperature
Altitude or Elevation
Moisture or water vapour.
Explanation:
Organ systems are made up of tissues which are made up of cells.
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The nitrogenous bases Adenine form two hydrogen bonds with thymine and the cytosine form three hydrogen bonds with the guanine. Simply, A combines with T and G combines with the C. It is often called as a complementary base pairing because of each base pair bonds only with its specific complementary base partner in a DNA molecule.