Vitamin C is a
A. fat-soluble, nonessential vitamin.
B. water-soluble, nonessential vitamin.
C. fat-soluble, essential vitamin.
D. water-soluble, essential vitamin.
Answer: D
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.Mrs. Mulligan goes to her dentist and, after having a couple of cavities filled, her dentist strongly suggests that she reduce her intake of sodas and increase her intake of calcium phosphates in the foods she eats. Why?
Sodas contain lots of sugar that can dissolve the calcium carbonate in bone and teeth. Sodas are strong acids that can dissolve the calcium phosphate in bone and teeth. Sodas are carbonated, and the increased carbon dioxide can dissolve the calcium carbonate in bone and teeth. Sodas are strong bases that can dissolve the calcium phosphate in bone and teeth. Sodas contain lots of sugar that can dissolve the calcium phosphate in bone and teeth.
How many body systems contribute to homeostasis?
a. 5 b. 7 c. 9 d. 11 e. 15
Which of the following statements about hormone synthesis is NOT correct?
A. Progesterone is a precursor of mineralocorticoid and glucocorticoid hormones. B. Pregnenolone is a precursor for all steroid hormones. C. Progesterone can be a precursor of cortisol. D. Peptide hormones are polymers of amino acids. E. Tryptophan is a precursor for thyroid hormones.
What type of tissue occurs at #1?
A) elastic tissue B) fibrocartilage C) bone D) hyaline cartilage E) marrow tissue