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Author Question: Which of the following is true of life on Earth? A) Life, in the form of multicellular organisms, ... (Read 119 times)

Redwolflake15

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on: Jul 27, 2018
Which of the following is true of life on Earth?
 
  A) Life, in the form of multicellular organisms, has existed on Earth for only about 2 million years.
  B) Life has existed on Earth for at least 3.4 billion years.
  C) The Cambrian explosion marks the formation of the first unicellular organisms on Earth.
  D) Complex multicellular organisms were present on Earth 2.5 billion years ago.

Question 2

Offspring born with random alterations to their DNA are called__________.
 
  A) clones
  B) drones
  C) mutants
  D) fossils


djpooyouma

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Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

C


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Redwolflake15

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Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


djpooyouma

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Reply #3 on: Jul 27, 2018
Great! Please up vote :D


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