In light adaptation,

a. rhodopsin levels increase in rods.
b. rhodopsin levels decrease in rods.
c. cones become active.
d. both (a) and (b) above.
e. both (b) and (c) above.


E

Anatomy & Physiology

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Upper motor neurons can originate in:

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Using Figure 2.2, match the following:



1) Deoxyribose sugar.
2) Thymine.
3) Guanine.
4) Phosphate.
5) Hydrogen bonds.

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Which of the following is a normal hematocrit value?

A. 78% B. 12.5 mg/dL C. 5.0 X 106 RBCs/L D. 33 mg E. 42%

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The layer between the tunica media and the tunica externa in a large artery is the

A) tunica intima. B) external elastic membrane. C) tunica media. D) internal elastic membrane. E) tunica externa.

Anatomy & Physiology