Amniotes Flashcards

1
Q

what does amniotes mean?

A

amniotic membrane in eggs

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2
Q

what is a choronic egg

A

only one membrane alone with embryo and yolk

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3
Q

amniotic egg

A

mutimembrane egg with embryo and yolk

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4
Q

what are the 5 components to amniotic eggs

A
  • chorion: outermsmbrane
  • amnion: inner membrane
  • allantois: sac of waste snd aid respiration
  • yolk: in vitlan membrane
  • embryo
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5
Q

general skeleton of aminotes

A

names the same as humans
just long caudal tail

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6
Q

general skull of amniotes

A

5 series of paired cranial bones
lateral tooth bearing series
- pre maxilla and maxilla
median series
- nasal, frontal, parietal & postparietal
circumorbital series
- lacrimal, jugal, prefrontal, postfrontal, postorbital
temporal series
- supra temporal and tabular
cheek series
- squmosal & quadratojugal

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7
Q

describe their skin

A

less Glands so they don’t worry about losing moisture
- thick epidermis

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8
Q

describe scales

A

made from epidermal scales
(keratin)

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9
Q

what other things are made from keratin

A

-nails
- horns
- skin
- hair
- scales

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10
Q

how often do aminotes molt

A

less than amphibians but have thicker layers when they do

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11
Q

what does bone fusion in ankle tell us?

A

that they needed greater support for motility

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12
Q
A
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