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Author Question: What are Darwin's postulates of natural selection? ... (Read 83 times)

asmith134

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on: Aug 22, 2018
What are Darwin's postulates of natural selection?

Question 2

North-flowing winds along the West Coast of North America produce ____, which has no direct effect on climate or productivity.
 A) upwelling
  B) diverging currents
  C) downwelling
  D) converging currents


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FergA

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Reply #1 on: Aug 22, 2018
Answer to Question 1

 There are more offspring produced than will actually survive to reach a reproductive age.
 There is genetic variation in all organisms.
 Some traits enhance the chance of survival in an environment. These traits are considered to be favorable.
 Organisms with favorable traits in an environment are more likely to survive and produce offspring. Thus, they are more likely to pass these favorable traits down to the next generation.
 When a particular trait is passed down in large numbers due to natural selection in an environment, it is selected for. It contributes to the success of an organism.

Answer to Question 2

C


asmith134

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Reply 2 on: Aug 22, 2018
Wow, this really help

kishoreddi

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Reply 3 on: Yesterday
Excellent

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