Chapter 16-Mammals Flashcards Preview

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Flashcards in Chapter 16-Mammals Deck (102)
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61

The sound produced by dolphins is sent through the ______________, a fatty organ in the bulge of the head.

Melon

62

What are the two rows of comblike plates that hang like curtains from each side of the upper jaw in a certain kind of whale?

Baleen

63

What are some examples of tree-dwelling mammals?

Apes,
Monkeys,
Lemurs

64

What kind of tree-dwelling mammals are primates without tails?

Apes

65

What kind of tree-dwelling mammal is the most familiar primates with tails, vary widely in size and behavior, possess a prehensile tail, and their nostrils are widely spaced?

Monkeys

66

What kind of tail do monkeys possess that is designed for grasping objects?

Prehensile tail

67

What kind of tree-dwelling mammals are an unusual kind of primate which live in only one area--Madagascar and nearby islands?

Lemurs

68

What kind of mammals are the small, gnawing mammals which have two pairs of sharp, chisel-like incisor teeth?

Rodents

69

What are some examples of rodents?

Mice,
Rats,
Capybaras,
Squirrels,
Woodchucks,
Gophers,
Beavers,
Porcupines

70

Rats are a grave concern to health officials, because rats carry diseases fatal to man such as:

Bubonic plague,
Food poisoning,
Typhus

71

What kind of gnawing mammal is the largest rodent?

Capybaras

72

What are the nocturnal animals of tropical jungles, that is about the size of a domestic cat, having a slender body, a long neck, and a doglike head, and is the longest-gliding mammal, that is able to glide several hundred yards at a time?

Flying lemurs

73

What kind of mammals have teeth similar to those of rodents, but have four incisors in the upper jaw instead of two, and are herbivores?

Lagomorphs

74

Three examples of lagomorphs are:

Hares,
Rabbits,
Pikas

75

What is the group of rabbit-sized, herbivorous mammals, look somewhat like short-eared rabbits, but their teeth are arranged differently than those of lagomorphs, and have hoofs on their toes and pads on the soles of their feet?

Hyrax

76

Some of the most valuable mammals to man are those whose toes end in _______________ (enlarged and thickened toenails).

Hoofs

77

Hoofed animals are called _______________, and scientists divide them into two groups, acceding to the number of ties that they have, and most of them have been designed as swift runners, because they need a means of escape from predators.

Ungulates

78

What is the group of ungulates that gave an even number functional toes?

Artiodactyla

79

What is the group of ungulates that has an odd number of functional toes?

Perissodactyla

80

What are three examples of odd-toed hoofed (Perissodactyla) mammals?

Rhinoceroses,
Tapirs,
Horses,
Zebras,
Donkeys

81

What kind of odd-toed hoofed mammal is a member of the equine family, and is a single-toed Perissodactyl?

Horses

82

Many artiodactyls have ____________, solid hornlike structures which are shed annually, and are bony elevations on the skull of the deer.

Antlers

83

Many artiodactyls have _____________, hollow structures which are usually permanent and thus not shed, and are composed of hollow sheaths of keratinize epidermal cells that surround a core of bone arising from the skull.

Horns

84

What term refers to the habit of hastily chewing and swallowing food which is later regurgitated and chewed more thoroughly?

"Chew the cud"

85

Animals which chew cud are _____________, which have a stomach that is divided into four sections.

Ruminants

86

What is the first and largest division of the four sections of a ruminants' stomach, which holds the unchewed food until it can be masticated thoroughly?

Rumen

87

What is the skin covering rich in blood vessels that covers the antlers, and is called this because if its appearance?

Velvet

88

What is the largest of all the deer?

Alaskan bull moose

89

What are three examples of artiodactyls?

Bovids,
Camels,
Deer

90

The domestic breeds of cattle are all different breeds of _____________, a name for wild cattle.

Oxen