Which structure produces a sugar- and protein-rich fluid that provides energy for sperm motility?
A. epididymis
B. seminal vesicle
C. testis
D. vas deferens
E. prostate gland
B
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The development of vaccinations began when Edward Jenner noticed that ________
a. people who had earlier exposure to cowpox did not develop smallpox b. people who drank water from a particular public water pump developed cholera c. bacteria removed from a sick animal would cause the same illness if injected into a healthy animal d. rats were always present when people contracted bubonic plague
Which of the following is not a primate?
A. Monkeys B. Lemurs C. Apes D. All are primates.
Maria is pregnant and a week past her due date, and her doctor decides to induce labor. Her physician will use pitocin, which is a synthetic form of which natural hormone?
A) estrogen B) progesterone C) oxytocin D) prolactin
Pygmies likely evolved because individuals who reproduced early in life were more fit than individuals who reproduced later in life.
a. true b. false