If a molecule contains carbon and at least one atom of hydrogen, it is referred to as being
a. inorganic.
b. acidic.
c. basic.
d. organic.
e. crystalline.
D
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A muscle that increases the angle between two bones at a joint is called a(n) ____
a. flexor b. agonist c. depressor d. antagonist e. extensor
Methylmalonic acidemia is caused by _____
A. an overdose of ethylene glycol B. fat accumulation in white blood cells C. defective liver enzymes D. the inability to metablolize amino acids and fats E. destruction of myelin sheaths surrounding nerves
A researcher is investigating the morphology of complete flowers. Which of the following organs must his flowers contain?
A. calyx, corolla, receptacle, and carpels B. calyx, corolla, carpels, and ovules C. calyx, corolla, carpels, and pistils D. calyx, corolla, androecium, and gynoecium E. calyx, corolla, stamens, and anthers
Nonspecific chemical defenses of the human host include all of the following EXCEPT ______.
A. lactic acid B. lysozyme C. antibodies D. hydrochloric acid