When pH levels in the blood get too low,chemical buffers are released that return blood pH back to normal levels.This is an example of ___.
A) negative feedback
B) positive feedback
C) constancy
D) sensory perception
E) endothermal reactions
Correct Answer:
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A) brain
B)
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The questions refer to one of the
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-skin
A)Respiratory
B)Digestive
C)Urinary
D)Reproductive
E)Endocrine
F)Cardiovascular
G)Integumentary
H)Muscular
I)Skeletal
J)Nervous
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