The neutral theory of molecular evolution proposed that most evolutionary changes are the result of the fixation of neutral mutations by genetic drift. Hence, in this model, most genetic changes in a population are the result of constant mutation pressure and genetic drift.
Answer:
Octopuses are really strong swimmers and can get about quickly, but some species have been found to 'walk' along the seabed instead. Although octopuses need water to breathe, they can survive on land for a few minutes.
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Answer:
All of the above .........
answer: The sperm will not survive the acidic conditions in the vagina
The fluid produced by the urethral glands neutralizes any residual acidity in the urethra (left there because of the urine that passed previously), that way it won't harm the sperm. For the same reasons, helps to neutralize the acidity of the vagina.