Answer:
34
Explanation:
it's atomic number is the same as it's number if protons
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I believe that phytoplankton is necessary to begin a food web
Answer: Directional selection occurs when individuals with traits on one side of the mean in their population survive better or reproduce more than those on the other. ... Directional selection does the “heavy lifting” of evolution by tending to move the trait mean toward the optimum for the environment.
