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Author Question: Collisions between galaxies typically unfold over a period of A) several days. B) several ... (Read 18 times)

Mollykgkg

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on: Jul 27, 2018
Collisions between galaxies typically unfold over a period of
 
  A) several days.
  B) several months.
  C) thousands of years.
  D) hundreds of millions of years.

Question 2

Different dog breeds have been bred by humans from a common ancestor over the past few thousand years. This is an example of
 
  A) natural selection
  B) un-natural selection
  C) artificial selection
  D) artificial insemination


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Sierray

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Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

C


Mollykgkg

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Reply #2 on: Jul 27, 2018
Thank you!


Sierray

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Reply #3 on: Jul 27, 2018
Always glad to help...


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