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Author Question: If only one sperm is needed to fertilize an egg, why are so many sperm produced by a man? a. This ... (Read 93 times)

ARLKQ

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on: Jun 18, 2018
If only one sperm is needed to fertilize an egg, why are so many sperm produced by a man?
 
  a. This ensures genetic variability of a man's offspring.
  b. The testicles themselves present a hostile environment for sperm as a way to ensure that the strongest sperm survive, thus most sperm die off even before ejaculation.
  c. All of the sperm are produced during the development of a male fetus, and so, an abundant number of sperm are needed to provide a sufficient supply for a man's lifetime.
  d. There are many barriers that confront a sperm on its journey to the egg, thus increasing the likelihood that some sperm will make their way to the egg.

Question 2

Out of the several hundred million sperm that were deposited into the vagina, fewer than ____ typically reach the correct fallopian tube.
 
  a. two hundred c. twenty thousand
  b. two thousand d. two hundred thousand


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lgoldst9

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Reply #1 on: Jun 18, 2018
Answer to Question 1

ANS: D

Answer to Question 2

ANS: A


ARLKQ

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Reply 2 on: Jun 18, 2018
YES! Correct, THANKS for helping me on my review

diana chang

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Reply 3 on: Yesterday
:D TYSM

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