Mammals Flashcards
Brain greatly ____ over birds/reptiles
Advanced
skin rich in ___
- glands: sweat, sebaceous, mammary
Hair functions
- insulation
- camouflage
- protection (UV)
- sensory organs
- Communication (danger, presence, sex diff)
Epiphyses
limit final growth
Attachment of skull and ___
mandible
(except crocodiles) has teeth set in ____
sockets
has muscular ___
diaphragm
separates ___ and abdominal cavities
thoracic
__-chamber heart
4
___thermic
homeothermic (99F - humans)
Viviparous
bringing forth live young that have developed inside the body of the parent
Ova are small and nearly ____, except ___.
yolk less, except Monotremata
Marsupials
- attach young in placenta TRUE PLACENTAL ANIMALS
Placenta
embryo -> tissue // uterine wall <-> vascular systems (transport wastes, Nutri)
- Fetus is somewhat protected
crepuscular
active at dawn and dusk
Walking running
plantigrade, digitigrade, unguligrade
Swimming
paddle, tail
parachuting:
some marsupials, rodents, insectivores