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1 | |
All of the following are characteristics of members of the class Mammalia except one. Select the exception. |
| | A) | mammary glands |
| | B) | hair |
| | C) | homodont teeth |
| | D) | sweat, sebaceous, and scent glands |
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2 | |
Members of the order Chiroptera include the |
| | A) | rats and mice. |
| | B) | rabbits. |
| | C) | bats. |
| | D) | armadillos. |
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3 | |
Members of the order Cetacea include the |
| | A) | elephants. |
| | B) | manatees. |
| | C) | beavers and porcupines. |
| | D) | whales. |
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4 | |
Members of the order Perissodactyla include the |
| | A) | elephants. |
| | B) | deer and cattle. |
| | C) | horses and zebras. |
| | D) | dogs and cats. |
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5 | |
The echidna and the duck-billed platypus are members of the infraclass |
| | A) | Prototheria. |
| | B) | Ornithodelphia. |
| | C) | Metatheria. |
| | D) | Eutheria. |
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6 | |
Members of the infraclass Ornithodelphia are characterized by |
| | A) | a chorioallantoic placenta. |
| | B) | ovoviviparous development. |
| | C) | a marsupium. |
| | D) | oviparous development and a cloaca. |
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7 | |
Which of the following glands are associated with hair follicles and function to lubricate and waterproof the skin? |
| | A) | sudoriferous glands |
| | B) | sebaceous glands |
| | C) | mammary glands |
| | D) | musk glands |
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8 | |
Which of the following kinds of mammal teeth are usually modified for gnawing or nipping? |
| | A) | incisors |
| | B) | canines |
| | C) | premolars |
| | D) | molars |
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9 | |
A dental formula of 2.1.2.3\2.1.2.3 indicates that this mammal has ___ molars. |
| | A) | 0 |
| | B) | 6 |
| | C) | 8 |
| | D) | 12 |
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10 | |
All of the following statements are true of horns except one. One is true of antlers. Select the statement that is true of antlers. |
| | A) | They have an outer layer of keratin. |
| | B) | They are primarily defensive structures. |
| | C) | They are made of rapidly growing bone and are shed and regrown each year. |
| | D) | They are always present in both sexes. |
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11 | |
In fetal mammalian circulation, blood in the ______ is most highly oxygenated. |
| | A) | pulmonary vein |
| | B) | pulmonary artery |
| | C) | aorta |
| | D) | umbilical vein |
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12 | |
In adult mammalian circulation, blood in the ______ is most highly oxygenated. |
| | A) | pulmonary artery |
| | B) | pulmonary vein |
| | C) | anterior vena cava |
| | D) | posterior vena cava |
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13 | |
A diaphragm is present in |
| | A) | birds and mammals. |
| | B) | reptiles, birds, and mammals. |
| | C) | mammals only. |
| | D) | birds and reptiles. |
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14 | |
The ability of the mammalian kidney to produce urine that is more concentrated with urea and salts than the blood is a result of the function of the |
| | A) | glomerulus. |
| | B) | glomerular capsule. |
| | C) | loop of the nephron. |
| | D) | collecting duct. |
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15 | |
The ______ is a time during which the female is behaviorally and physiologically receptive to the male. |
| | A) | menstrual cycle |
| | B) | ovarian cycle |
| | C) | estrus cycle |
| | D) | uterine cycle |
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16 | |
One source of evidence that the mammals evolved in the archosaur branch of the amniote lineage is the fact that crocodilians and mammals both possess a secondary palate. |
| | A) | True |
| | B) | False |
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17 | |
Another source of evidence that the mammals evolved in the archosaur branch of the amniote lineage is the fact that both birds and mammals have four completely separated heart chambers. |
| | A) | True |
| | B) | False |
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18 | |
The presence of a secondary palate in crocodiles and mammals and completely separated heart chambers in birds and mammals are examples of convergent evolution. |
| | A) | True |
| | B) | False |
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19 | |
Small size, well developed olfactory and auditory senses, and lack of color vision in most mammals suggests that early mammals were nocturnal. |
| | A) | True |
| | B) | False |
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20 | |
Sudoriferous glands are found around the face, feet, or anus of many mammals. They secrete pheromones involved with defense, species and sex recognition, and territorial behavior. |
| | A) | True |
| | B) | False |
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21 | |
A cecum is found in horses, rabbits, and many rodents. It is a fermentation pouch at the junction of the large and small intestines where microorganisms aid in cellulose digestion. |
| | A) | True |
| | B) | False |
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22 | |
Hibernation is a period of winter inactivity in which the hypothalamus of the brain slows the metabolic, heart, and respiratory rates. It is common in rodents, bats, and bears. |
| | A) | True |
| | B) | False |
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23 | |
Color vision is more common in reptiles and birds than it is in the mammals. |
| | A) | True |
| | B) | False |
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24 | |
Embryonic diapause occurs in bats. Coitus occurs in the autumn, but fertilization is delayed until spring. Females store viable sperm for about two months. |
| | A) | True |
| | B) | False |
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25 | |
All mammals have a placenta through which young are nourished for at least a portion of their development. The maternal bloodstream, not yolk, supplies nutrients. |
| | A) | True |
| | B) | False |
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