6: Terapods Flashcards

(42 cards)

1
Q

tetrapod that typically have aquatic young and semi aquatic or terrestrial adults

A

amphibians

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2
Q

amphibian skin: smooth/moist modified for _____ _____

A

cutaneous respiration

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3
Q

amphibians breathe w their ______ and _____

A

lungs and skin

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4
Q

amphibians are ______ or cold-blooded

A

ectothermic

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5
Q

many amphibians undergo ____; some species of salamander (axolotl) does not; some have no aquatic larval stage

A

metamorphosis

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6
Q

3 modern amphibian orders

A

apoda
urodela
anura

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7
Q

Modern amphibian order:
- caecilians
- limbless
- resemble earthworm w/ jawed mouth
- eyes slightly reduced/absent

A

apoda

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8
Q

Modern amphibian order:
- newts/salamanders
- tailed amphibians

A

urodela

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9
Q

terrestrial salamanders undergo ____ _____; some retain larval features into adulthood

A

direct development

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10
Q

Modern amphibian order:
- frogs/toads
- no tail, gills in adulthood
- head+trunk fused
- rely more on lungs

A

anura

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11
Q

tetrapod adapted for terrestrial environments

A

amniotes

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12
Q

the _____ ____ protects the embryo from drying out and maintains a fluid filled enviro in amniotes

A

amniotic egg

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13
Q

2 amniote lineages

A

sauropsids
synapsids

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14
Q

sauropsid characterized by scaly skin
- most ectothermic
- most 3-chambered hearts

A

reptiles

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15
Q

reptile skin have scales made of _____ and _____ _____ to prevent water loss; regularly shed to accomodate growth

A

keratin and waxy lipids

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16
Q

this reptile has a 4-chambered heart

A

crocodilians

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17
Q

3 extant reptile taxa

A

testudines
lepidosauria
archosauria

18
Q

reptilia class:
- turtles/ tortoises
- no teeth

19
Q

testudines use ____ ____ instead of teeth

A

keratinized plates

20
Q

2 part shell in testudines (dorsal; ventral)

A

carapace
plastron

21
Q

reptilia class:
- lizards/snakes
- some viviparous
- make up 95% of all extant species

22
Q

most squamata have a ____ ______: skull that has multiple movable joints

A

kinetic skull

23
Q

lizards are ______; snakes are ______

A

paraphyletic; monophyletic

24
Q

squamata:
- 4 limbs, short bodies, external ear opening
- movable eyelids
- vision keen for daylight

25
squamata: - skull more kinetic than lizards - lack limbs, pelvic/pectoral girdles, eyelids - forked tongue - no external ears (chemical senses) - <20% venomous
snakes
26
reptilia class: - tuataras - resembles lizards but share features w mesozoic diapsids - well-dev parietal eye - slow reproductive rate - only one living species in NZ
sphenodonta
27
reptilia class: - robust jaw w teeth set in sockets - complete secondary palate - 4-chambered heart - intensive parental care
crocodilia
28
allows crocodilia to breathe when mouth is full
complete secondary palate
29
- extant clade of theropod dinosaurs - characterized by their feathers
birds
30
all birds are _____ or "warm-blooded"; birds have a ____ chambered heart
endothermic; 4
31
bird feathers: ______ have barbs that link together (reduce drag during flight); _______ do not interlock (insulation)
contour feathers; down feathers
32
birds capable of flight have ____ ____: hollow bones that reduce weight
pneumatic bones
33
mammals are characterized by _____ and _____ _____
hair; mammary glands
34
hair is made up of ____ and typically aids in insulation; can be used as sensory mechanism (whiskers)
keratin
35
______ ______ produce milk for feeding newborns
mammary glands
36
3 mammal groups
monotremes marsupials eutherians
37
- only mammal group that lays eggs - platypus; echidna
monotremes
38
- mammals most raise their young in pouch - 2/3 in aus - kangaroos, wallabies, koalas
marsupials
39
- placental mammals - most widespread - posses complex placenta attached to embryo - whales, dogs, primates
eutherians
40
- mammals grasping fingers on all 4 limbs - flat fingernails instead of claws - forward-facing eyes allow binocular vision and depth perception
primates
41
primates have a large ____ ____ (brain)
cerebral cortex
42
humans are in the family ____ w chimpanzees, orangutans, bonobos and gorillas
hominidae