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Author Question: As they move through space, the vibrating electrical and magnetic fields of a light wave must move ... (Read 114 times)

bobbysung

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As they move through space, the vibrating electrical and magnetic fields of a light wave must move perpendicular to each other.
 
  Indicate whether the statement is true or false

Question 2

Based on DNA studies, it seems that all life on Earth ________.
 
  A) arose from one of five distinct ancestors that lived about two billion years ago
  B) shares a common ancestor
  C) requires oxygen to survive
  D) belongs to one of just two kingdoms: plants and animals



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smrerig

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Answer to Question 1

TRUE

Answer to Question 2

B




bobbysung

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Reply 2 on: Jul 27, 2018
Gracias!


lindahyatt42

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Reply 3 on: Yesterday
Wow, this really help

 

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