Chapter 6 Part 3

Question 1

Apocrine glands secrete

Answer 1

salts, urea, water

Question 2

Scent (musk) glands around feet, face, anus; secrete

Answer 2

pheromones-defense, species/sex recognition, territoriality

Question 3

Mammary glands-

Answer 3

milk has carbs, water, proteins, fat , minerals, antibodies

Question 4

Nails-

Answer 4

plates of compact, cornified epithelial cells; only primates have them; protect digits, stabilize skin on opposite side of digit

Question 5

Claws (talons)-

Answer 5

laterally compressed

Question 6

Hooves-

Answer 6

enlarged keratinized plates on tips of digits

Question 7

Only extant vertebrates that posses horns and antlers:

Answer 7

Mammals

Question 8

Skin/bone contribute to

Answer 8

bones or antlers

Question 9

Horns-

Answer 9

integument produces tough, cornified sheath that lies over bony core

Question 10

Antlers-

Answer 10

overlying integument is vascularized to nourish growing bone underneath; when velvet is shed, underlying branched bone is exposed

Question 11

Horns occur in

Answer 11

Bovidae (cattle, sheep, goat, wild beast, bison)

Question 12

Horns occur in male or female?

Answer 12

both

Question 13

Horns retained…

Answer 13

all year round, continue to grow throughout life

Question 14

Antlers occur in

Answer 14

Cervidae (deer, elk, moose)

Question 15

Antlers occur in male or female?

Answer 15

males (exception caribou)

Question 16

When do Antlers shed..

Answer 16

annually, growth is under hormone control

Question 17

Baleen contains no

Answer 17

bone, series of keratinized plates developed from integument