arboreal locomotion Flashcards
How does a diagonal gait sequence help chameleon locomotion?
helps maintain centre of gravity which helps movement on branches
abduction
movement away from the midline of the body
different genuses are venomous which
suggests there is a common ancestor of snakes and reptiles 200 Mya
monotremes
a primitive animal that lays eggs (in the order monotrema)
short beaked echidna can live in
a range of habitats
name a monotreme mammalian trait
maintain constant body temp even in cold water
is echidna venomous?
no
where is venom a sexually dimorphic trait?
in male platypus where they are venomous
why does platypus have more electroreceptors than echidna?
they live in the water
coracoid bone is found in
monotremes birds and reptiles but not placental or marsupial mammals
coracoid bone exists as
a separate bone in reptiles
how many cloacas do monotremes have
one, an ancetral condition - same as reptiles and birds
what do echidnas and reptiles have in common
reproductive mechanisms - evolutionary link?
why are platypus referred to as reptillian?
their fore and hind limb splay outwards like reptilians do
echidna locomotion
body elevated and walks on palms
