Question

Not all copulations lead to pregnancy. Give reason. [HOTS]

Answer 1

Answer:

Because all mating does not result in transport of sperm and ovum simultaneously at ampulla. The ovum has to be present in the ampulla of fallopian tube, so when the sperm reaches, it fertilizes and causes pregnancy.

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Answer 2

Answer:

All copulation does not lead to fertilization and pregnancy because all mating does not result in transport of sperm and ovum simultaneously at ampulla. The ovum has to be present in the ampulla of fallopian tube, so when the sperm reaches, it fertilizes and causes pregnancy.

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