What do the simplest vertebrates lack? A) Jaws B) Notochord ...

[BrownTown3]

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]

Answer to Question 1

A

Answer to Question 2

B