Females need more dietary iron than males because they:
A) have more red blood cells.
B) have less bone marrow.
C) lose more iron (during menstruation) .
D) have a larger volume of blood.
E) are less able to absorb iron.
Correct Answer:
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Q29: Which blood constituent makes up most of
Q30: Red blood cells make up _% of
Q31: Erythrocytes are produced in the:
A)bone marrow.
B)liver.
C)spleen.
D)heart.
Q32: Erythropoietin:
A)is produced by the pancreas.
B)is released in
Q33: In a random screening of athletes at
Q35: Long-distance runners like to train at high
Q36: Plasma is primarily:
A)protein.
B)salt.
C)cells.
D)gases.
E)water.
Q37: The human heart contains cells that do
Q38: What is the cardiac cycle?
A)the alternating relaxation
Q39: Some athletes use "blood doping," in which
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