Teeth

Hypsodont

In herbivores high crowned teeth lophodont selenodont

Aguoti

Mixture or bands of two pigments

Canines

Most forward tooth in maxillary

Epidermal bone

Reptiles have this in scales Armadillo scales Pangolin

Selenodont

Single cusp fuses into crescent shape Most herbivores

Mammary glands

Characteristic of mammals Specialized epidermal glands that grow deep in hypodermis, forming ducts surrounded by milk producing cells

Incisors

Chisel like

Sebacious glands

Derived from epidermis Associated with hair folicles

Bunodont molars

Teeth possessing four major cusps arranged in a rectangle -Seen in humans, primates, pigs and omnivores

Dermal bone

True bone formed in the dermis Scales of fish, turtle shells, skin of many lizards

Claw regions

Unguis, Subunguis, pad

Pelage

body hair consists of long, coarse guard hair, underlain with short dense, fine under fur

Disruptive coloring

break up pattern

Selenolophodont

combined features of lophodont and selenodont

Warning coloration

conspicuous coloration or markings of an animal serving to warn off predators

Oxytocin

contraction of muscles into ducts for milk let down

Lophodont

cups fuse into ridges

Countershading

dark on top, light on bottom

Beaver

epidermal scales

Structure of integument

epidermis, dermis, hypodermis

Prolactin

stimulates milk production

Hooves

the tips of the toes of animals like horses

Role of integument

-seperate internal from external -disease barrier -insulation -water conservation -communication

Cryptic coloring

Match surroundings ex: deer fawn

Tribosphenic molars

opposm

Albanism

Absense of black pgiment

Vibrissae

Hair with specialized follicles Primarily sensory

Selenodon

Have zalambdodont -Insectivores

Heterodont

Having different kinds of teeth; characteristic of mammals, whose teeth consist of incisors, canines, premolars, and molars.

Monophydont

Having one set of teeth during lifetime Whales and some mammals

Hypodermis

Layer of connective tissue and fat below the dermis

Premolars

Up to 4, have fewer cusps

Dilambdodont

W-shaped

Intraspecific variation

among members of the same species due to habitat variation

Melanism

an increased amount of black or nearly black pigmentation (as of skin, feathers, or hair) of an organism, resulting from the presence of melanin.

Angora

grows continously

Zalambdodont

having molar teeth with V-shaped ridges

Homodont

having teeth that are uniform in form, shape, and function.

Brachyodont

low crowned teeth -chimp have them

Scent gland

modified sebaceous or sweat glands Many act as phermones