In fermentation, ________ is ________.
A) NAD+ . . . oxidized
B) NADH . . . oxidized
C) pyruvate . . . oxidized
D) NADH . . . reduced
E) ethanol . . . oxidized
Answer: B) NADH . . . oxidized
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Gas gangrene is always caused by:
A) Bacillus anthracis. B) Clostridium spp. C) Staphylococcus aureus. D) Streptococcus pyogenes.
Which of these animals is most closely related to modern birds?
a. crocodiles b. Tyrannosaurus c. pterodactyls d. Apatosaurus
The greatest drop in blood pressure occurs in the
a. arteries. b. arterioles. c. capillaries. d. venules. e. veins.
The eggs released by sponges during reproduction have proteins on their surfaces that prevent sperm from different sponge species from binding to the eggs. What type of reproductive isolation would include this example?
A) gamete compatibility B) hybrid inviability C) mechanical reproductive isolation D) behavioral reproductive isolation