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Author Question: What did Darwin suggest the driving force of evolution was? a. Reproduction b. Small genetic ... (Read 269 times)

notis

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on: Aug 22, 2018

What did Darwin suggest the driving force of evolution was?
  a. Reproduction
  b. Small genetic variation
  c. Isolation
  d. Large population size



Question 2

What layer is permanently devoid of light?
  a. Photic zone
  b. Euphotic zone
  c. Disphotic zone
  d. Aphotic zone



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kusterl

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

ANS: C
Charles Darwin thought isolation was a key factor in evolution. He observed various finch populations
on separate islands in the Galapagos. He also realized the smaller the reproducing population was, the
faster evolutionary change would occur. Information can be found in the section Understanding the
Ocean Began with Voyaging for Trade and Exploration



Answer to Question 2

ANS: D
The aphotic zone receives no sunlight. It extends from below the photic zone to the seabed. Animals
have developed other means of getting nutrients without the ready availability of photosynthetic
organisms. Information can be found in the section Marine Life Success Depends upon Physical and
Biological Environmental Factors



notis

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

juliaf

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

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