Of all primates, which are genetically the closest to humans?
a. the great apes
b. spider monkeys
c. gibbons
d. bonobos
e. baboons
D
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Trochophores, the free-swimming larvae of many mollusks, are propelled through the water by
A. flagella. B. cilia. C. flame cells. D. nephridia. E. the radula.
A muscle that causes any type of movement in a joint when it contracts is called a(n)
a. flexor. b. agonist. c. depressor. d. antagonist. e. extensor.
Diploid human cells contain 22 homologous chromosomes and a pair of ________
Fill in the blank with correct word.
Dorothy suffered a serious stroke that destroyed neurons in the swallowing center of her brain. This damage to her brain would prevent ________.
A. secretion of saliva B. mastication C. bolus formation by her tongue D. peristalsis E. elevation of the soft palate