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Author Question: Which of the following statements is true regarding first-cousin marriage? a. It roughly doubles ... (Read 71 times)

futuristic

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on: Aug 11, 2018
Which of the following statements is true regarding first-cousin marriage?
 
  a. It roughly doubles the risk of birth defects or infant mortality.
 b. It triples the genetic risks to unborn children.
 c. It produces significantly healthier children.
 d. It has no detectable difference in birth defects from noncousin marriage.

Question 2

What is natural selection?
 
  What will be an ideal response?


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miss_1456@hotmail.com

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Reply #1 on: Aug 11, 2018
Answer to Question 1

a

Answer to Question 2

Natural selection is the key evolutionary mechanism  that all species produce offspring faster
than the food supply, that there is biological variation within all species, that in each generation
more offspring are born than survive, that more favorable traits lead to more fit individuals, that
the environment determines which traits are favorable, that traits are inherited and passed on to
yield greater reproductive success overall, that accumulations of changes over time may lead to a
new species, and that geographical isolation contributes to the formation of a new species through
selective pressure.


futuristic

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Reply 2 on: Aug 11, 2018
Gracias!

vickyvicksss

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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