lobe finned fish -> amphibians Flashcards

1
Q

what is significant about lobe finned fish

A

breathe in and out of water

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2
Q

similaries in fin/hands of LFF and amphibians

A

LFF had hand-like fins with similar bone structure to an amphibian hand

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3
Q

similarity in limbs of LFF and A

A

4 limbs in same place

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4
Q

similarity in skull of LFF and A

A

same jaw bone ( and complex teeth)

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5
Q

other similarities between LFF and A

A

small bony scales

tail fin

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6
Q

adaption of amphibians to live on land

A
girdle
robust skeleton
double loop circulatory system
eyelid
tongue
ears adapted
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7
Q

how did girdle adaption help amphibian life on land

A

connected limb bones to the skeleton for better movement on land

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8
Q

how did a robust skeleton help amphibian life on land

A

more support

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9
Q

how did eyelids help amphibian live on land

A

kept eyes moist as was no longer always submerged in water

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10
Q

how did double-loop circulatory system help amphibian live on land

A

more efficient gas exchange

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11
Q

how did a tongue help amphibian live on land

A

catch prey + sensory role

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12
Q

how did changes to ears help amphibian live on land

A

could detect sound through thin medium of air

prey/ predators

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13
Q

what were limitiations to amphbians

A

had to stay near a water source to keep moist

lay eggs in water as young are born with gills

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14
Q

why did amphibians have to keep moist

A

they used their skin for gas exchange

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15
Q

examples of LFF

A

lungfish

coelacanth

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