As glomerular filtrate moves through the ascending loop of Henle, the filtrate becomes more dilute: why?
A. The ascending loop of Henle is permeable to water and ions
B. The ascending loop of Henle is permeable to ions but impermeable to water
C. The ascending loop of Henle is impermeable to water and ions
D. The ascending loop of Henle is permeable to water but not to ions
Select your answer:
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Vitamins › ViewWhich if the following foods are rich in Vitamin A?
A. milk fortified with vitamin A
B. liver
C. orange fruits and vegetables (like cantaloupe, carrots, sweet potatoes)
D. all of the above
Skin Structure › View
The principle functions of the skin are protection, heat regulation, and
A. secretion, absorption and temperature
B. secretion, absorption and elasticity
C. excretion, secretion, and absorption
D. absorption, secretion and preservation