Lab 9 Flashcards
1
Q
tetrapods evolved from what fish ancestral group?
A
Osteichthyes -> Scaropterygii
2
Q
what are the layers in the amniotic egg?
A
chorion, allantois, amnion and yolk sac
3
Q
what is the function of each amniotic egg layer?
A
chorion: gas exchange
allantois: gas exchange, deals with waste + metabolic production
amnion: fluid-filled (amniotic) surrounds membrane, is cushion
yolk sac: feeds the embryo
4
Q
what is the function of the temporal openings?
A
