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Author Question: What is one advantage that primates have over other forms of life? A) the ability to run fast B) ... (Read 35 times)

leilurhhh

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on: Jul 27, 2018
What is one advantage that primates have over other forms of life?
 
  A) the ability to run fast
  B) extra-large brains
  C) the opposable thumb
  D) the ability to walk upright

Question 2

Why does a lamp burn out quicker if it is turned on and off many times, rather than one that is left burning?
 
  What will be an ideal response?


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succesfull

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

C

Answer to Question 2

The Tungsten filament has a positive temperature coefficient of resistance. Thus when it is first turned on, its current is excessive and the filament for an instant evaporates some of its surface, thereby becoming thinner.


leilurhhh

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

parshano

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Reply 3 on: Yesterday
Wow, this really help

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