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Home Q & A Board Biology-Related Homework Help General Biology
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Hoshuia Hoshuia
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6 years ago
A fly's wings flap when ________.
 
  a. muscles in the wings contract and relax
 b. blood surges into and out of the wings
 c. muscles in the thorax contract and relax, changing its shape
 d. muscles contract against a hydrostatic skeleton

Question 2

What type of response is most associated with the brain sensing a cold environment?
 
  a. Decrease in blood flow to the skin.
 b. Heart rate decreasing.
 c. Increased respiration.
 d. Sweat glands increase their output.
 e. Increase in blood flow to the skin.
Textbook 
Criminology (Justice Series)

Criminology (Justice Series)


Edition: 4th
Author:
Read 63 times
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Replies
wrote...
#1
6 years ago
Answer to q. 1

c

Answer to q. 2

a
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