The life span of an erythrocyte is about ________ days.
A. 60
B. 120
C. 30
D. 10
E. 360
Answer: B
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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
Those characteristics that can be determined on superficial inspection of an individual are known as ________
A) polyspermic B) polygenic C) genotypic D) phenotypic
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
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