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Answer:
D. That is a D.N.A Molecule, which stores your gene's/ info
Answer:
A 0.9% solution of NaCl (saline) is isotonic to animal cells. When exposing animal tissues to solutions, it is common to use an isotonic solution such as Ringer's buffered saline so as to prevent osmotic effects and consequent damage to cells.
Explanation:
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A contour interval is the lines on a topographic map that state the height (from sea level) of the hill, valley, mountain or the ground level.