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Home Q & A Board Biology-Related Homework Help General Biology
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Maria Maria
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6 years ago
How long ago did Neanderthals go extinct?
  a. 30,000 years ago.
  b. 100,000 years ago.
  c. 500,000 years ago.
  d. 1 000,000 years ago.
  e. 2,000,000 years ago.

Question 2

Mammals appeared 220 MYA but did not begin to greatly diversify until 65 MYA - why? What will be an ideal response?
 
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Replies
wrote...
#1
6 years ago
Answer to q. 1

A

Answer to q. 2

During the first 155 MYA of mammalian existence, they shared the Earth with dinosaurs. Mammals
were not able to directly compete, and thus stayed relatively small. After the extinction of the
dinosaurs, mammals evolved to fill the niches previously occupied by the dinosaurs.
Maria Author
wrote...
#2
6 years ago
Commenting just to show my support for informative posts like this, keep it up 10/10
wrote...
#3
6 years ago
That helps more than you thinks, thanks for being so thoughtful
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