Which cell type, found in connective tissue proper, is formed from monocytes and serves to phagocytize damaged cells or pathogens?
A. Plasma cell
B. Mesenchymal cell
C. Adipocytes
D. Macrophage
E. Mast cell
Answer: D
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The advantage of having many nuclei in a skeletal muscle fiber is the ability to
A) contract much more forcefully. B) produce more ATP with little oxygen. C) store extra DNA for metabolism. D) produce large amounts of muscle proteins. E) produce nutrients for muscle contraction.
If you were contracting and relaxing your masseter, what would you probably be doing?
A) swallowing B) blinking C) sticking out your tongue D) bending the neck to look down E) chewing or eating
The parathyroid glands produce a hormone that
A) stimulates the formation of white blood cells. B) increases the level of calcium ions in the blood. C) increases the level of sodium ions in the blood. D) increases the level of potassium ions in the blood. E) increases the level of glucose in the blood.
When dehydration synthesis occurs between two amino acids, a covalent bond called a ________ bond forms between them.
Fill in the blank(s) with the appropriate word(s).