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Rony02 Rony02
wrote...
Posts: 494
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6 years ago
Assuming geological evidence is accurate, life on Earth may have originated
 
  a. 14 billion years ago.
  b. 4.6 billion years ago.
  c. 3.5 billion years ago.
  d. 2.1 billion years ago.
  e. 1.2 billion years ago.

Question 2

Modern cells are thought to have arisen from
 
  a. protocells.
  b. pre-cells.
  c. gas and dust clouds.
  d. prokaryotic cells that predated protocells.
  e. prokaryotic cells that predated pre-cells.
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Replies
wrote...
6 years ago
Answer to q. 1

C

Answer to q. 2

A
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