|
| 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 |
|
| 2 | Members of the order Chiroptera include the |
| A) | rats and mice. |
| B) | rabbits. |
| C) | bats. |
| D) | armadillos. |
|
| 3 | Members of the order Cetacea include the |
| A) | elephants. |
| B) | manatees. |
| C) | beavers and porcupines. |
| D) | whales. |
|
| 4 | Members of the order Perissodactyla include the |
| A) | elephants. |
| B) | deer and cattle. |
| C) | horses and zebras. |
| D) | dogs and cats. |
|
| 5 | The echidna and the duck-billed platypus are members of the infraclass |
| A) | Prototheria. |
| B) | Ornithodelphia. |
| C) | Metatheria. |
| D) | Eutheria. |
|
| 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. |
|
| 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 |
|
| 8 | Which of the following kinds of mammal teeth are usually modified for gnawing or nipping? |
| A) | incisors |
| B) | canines |
| C) | premolars |
| D) | molars |
|
| 9 | A dental formula of 2.1.2.3\2.1.2.3 indicates that this mammal has a total of ___ molars. |
| A) | 0 |
| B) | 6 |
| C) | 8 |
| D) | 12 |
|
| 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. |
|
| 11 | In fetal mammalian circulation, blood in the ______ is most highly oxygenated. |
| A) | pulmonary vein |
| B) | pulmonary artery |
| C) | aorta |
| D) | umbilical vein |
|
| 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 |
|
| 13 | A diaphragm is present in |
| A) | birds and mammals. |
| B) | reptiles, birds, and mammals. |
| C) | mammals only. |
| D) | birds and reptiles. |
|
| 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. |
|
| 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 |
|
| 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 |
|
| 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 |
|
| 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 |
|
| 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 |
|
| 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 |
|
| 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 |
|
| 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 |
|
| 23 | Color vision is more common in reptiles and birds than it is in the mammals. |
| A) | True |
| B) | False |
|
| 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 |
|
| 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 |
|
| 26 | Hominini includes gorillas, chimps, humans and the orangutan. |
| A) | True |
| B) | False |
|
| 27 | The oldest known fossil in the human lineage is Sahelanthropus tchadensis. This species lived in Africa about 7 million years ago |
| A) | True |
| B) | False |
|
| 28 | Earliest primitive stone tool use is usually associated with Homo habilis about 2 million years ago. |
| A) | True |
| B) | False |
|
| 29 | Ritual burial sites indicate that Homo erectus probably had concepts regarding an after-life. |
| A) | True |
| B) | False |
|
| 30 | Cultural evolution is different from organic evolution because the former occurs as a result of learned activities. |
| A) | True |
| B) | False |