Which of the following statements is false?
a. Vitamins A, C, and E may counter some effects
of aging.
b. Vitamins A, C, and E may protect the immune
system.
c. Vitamin K lessens osteoporosis in elderly
women.
d. Those taking certain medications may require
vitamin supplements.
e. Excessive amounts of all vitamins, especially the
fat soluble ones, are beneficial.
Answer: e
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Anaerobic respiration is most common in
A. animals. B. protozoans. C. fungi. D. plants. E. archaeans.
If a pigment absorbed violet, yellow, orange, red, and green light, what color would it appear to be?
a. white b. brown c. black d. blue e. gray
Osmotic concentration in the loop of Henle increases as NaCl as water moves out.
a. true b. false
According to the accompanying figure, which of the following are large enough to see in the light microscope?
 A) atoms B) proteins C) viruses D) mitochondria