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Author Question: What do the simplest vertebrates lack? A) Jaws B) Notochord C) Central nervous system D) None ... (Read 45 times)

BrownTown3

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on: Aug 22, 2018
What do the simplest vertebrates lack?
 A) Jaws
  B) Notochord
  C) Central nervous system
  D) None of these choices

Question 2

It is believed that over the past two million years, world sea level has ____.
 A) changed, but not significantly
  B) varied from about 6 meters above to about 125 meters below present position
  C) varied from about 125 meters above to about 6 meters below present position
  D) not changed


dlook33

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

A

Answer to Question 2

B


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