Which of the following is the monomeric, building block of nucleic acids?
a. ribose
b. phosphate
c. nitrogenous base (A, G, C, T, U)
d. nucleotide
e. amino acid
D
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The rhythmic, wavelike motion produced by smooth muscles in tubular visceral organs is called ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following correctly states the function of the tarsal glands?
A) Tarsal glands produce sweat. B) Tarsal glands secrete mucus. C) Tarsal glands produce an oily secretion that lubricates the eye. D) Tarsal glands release tears. E) Tarsal glands secrete lysozymes which are enzymes that destroy bacteria in the eye.
Activation of the complement cascade via the alternative pathway involves the spontaneous activation of the complement protein _____________
A. C1 B. C2 C. C4 D. C5 E. C3
What is the correct sequence of vessels that blood travels as it leaves the heart?
A. Aorta - arterioles -arteries - capillaries - venules - veins - vena cavae B. Aorta - arteries - arterioles - capillaries - veins - venules - vena cavae C. Aorta - arteries - arterioles - capillaries - venules - veins - vena cavae D. Vena cavae - veins - venules - capillaries - arterioles - arteries - aorta