Vitamin C is a
A. fat-soluble, essential vitamin.
B. fat-soluble, nonessential vitamin.
C. water-soluble, essential vitamin.
D. water-soluble, nonessential vitamin.
C
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Many lipid-soluble medications can be delivered by diffusion across the skin. This process is called transdermal administration and is commonly done by applying patches that contain the medication to the surface of the skin. These patches can be attached anywhere on the skin except the palms of the hands and the soles of the feet. Why?
The ________ membrane covers the heart.
Fill in the blank(s) with the appropriate word(s).
Which of the following are functions that occur in both the male and female reproductive systems? (Check all that apply.)
A. Nourish the developing gametes B. Nourish and protect the developing embryo/fetus. C. Production of hormones D. Gamete production
Mature erythrocytes
A. have a centrally located nucleus. B. are actually just cellular fragments. C. contain hemoglobin in their cytoplasm. D. mature from cells called megakaryocytes. E. do not contain protein.