lobe finned fish -> amphibians Flashcards
what is significant about lobe finned fish
breathe in and out of water
similaries in fin/hands of LFF and amphibians
LFF had hand-like fins with similar bone structure to an amphibian hand
similarity in limbs of LFF and A
4 limbs in same place
similarity in skull of LFF and A
same jaw bone ( and complex teeth)
other similarities between LFF and A
small bony scales
tail fin
adaption of amphibians to live on land
girdle robust skeleton double loop circulatory system eyelid tongue ears adapted
how did girdle adaption help amphibian life on land
connected limb bones to the skeleton for better movement on land
how did a robust skeleton help amphibian life on land
more support
how did eyelids help amphibian live on land
kept eyes moist as was no longer always submerged in water
how did double-loop circulatory system help amphibian live on land
more efficient gas exchange
how did a tongue help amphibian live on land
catch prey + sensory role
how did changes to ears help amphibian live on land
could detect sound through thin medium of air
prey/ predators
what were limitiations to amphbians
had to stay near a water source to keep moist
lay eggs in water as young are born with gills
why did amphibians have to keep moist
they used their skin for gas exchange
examples of LFF
lungfish
coelacanth
