Mechanical vectors transmit the infectious agent by _____
a. biting the host
b. direct contact
c. food
d. contaminated vehicle
b. direct contact
c. food
d. contaminated vehicle
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How many ATP and NADH molecules are produced from each molecule of glucose in the citric acid cycle only?
A. 4 ATP, 2 NADH B. 3 ATP, 4 NADH C. 2 ATP, 6 NADH D. 1 ATP, 2 NADH E. 0 ATP, 6 NADH
If a cell was to stop dividing, in which part of
the cell cycle would it stop?
a. G1 b. S c. G2 d. telophase e. prophase
Organize the sequence of structures through which sperm must pass upon ejaculation
1) urethra 2) ejaculatory duct 3) epididymis 4) vas deferens a. 3 ? 2 ? 1 ? 4 b. 3 ? 4 ? 2 ? 1 c. 2 ? 3 ? 4 ? 1 d. 2 ? 4 ? 3 ? 1 e. 4 ? 3 ? 2 ? 1
A nucleotide contains
A. glycerol and fatty acids. B. a base, sugar, and phosphate group. C. amino acids. D. an acid, base, and salt.