What are the two functions of the lens of the eye?
A. Refraction and accomodation
B. Impulse reception and transmission
C. Maintains the shape of the eyeball and refracts light
D. Color vision and night vision
Select your answer:
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Respiratory System › ViewIn humans, what happens when the breathing rate increases?
A. Additional oxygen will diffuse into the blood as carbon dioxide diffuses out of the blood in the lungs.
B. Additional carbon dioxide will diffuse into the blood as oxygen diffuses out of the blood in the lungs.
C. Oxygen from body cells will diffuse more rapidly into red blood cells.
D. Increased oxygen dissolved in the blood will stimulate the cerebrum to slow the breathing rate.
Biochemistry › View
True or False.
The substances that enter a reaction are the reactants.
A. TRUE
B. FALSE