The life span of an erythrocyte is about ________ days.

A. 60
B. 120
C. 30
D. 10
E. 360


Answer: B

Anatomy & Physiology

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The three types of cones in the retina are differentiated from one another by what feature?

A) Whether they contain cis-retinal or trans-retinal or both B) The absorption peak of their photopsin C) The width of their outer segment D) The number of discs in their outer segment

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A nutrient that is required for the synthesis of fatty acids as well as playing a role in cellular respiration is ________.

A. folic acid B. biotin C. riboflavin D. vitamin C

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An angle formed by a body segment with respect to horizontal is what?

A. relative angle B. absolute angle C. acute angle D. none of the above

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Those characteristics that can be determined on superficial inspection of an individual are known as ________

A) polyspermic B) polygenic C) genotypic D) phenotypic

Anatomy & Physiology