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Magnet Biology > Chordates > Flashcards

Chordates Flashcards

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1
Q

All chordates have ____ cords

A

nerve

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2
Q

Define Urochordata

A

Only larvae have notochord

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3
Q

Define Cephalochordata

A

Retain notochord throughout adulthood, but “muscle- like” for burrowing

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4
Q

Define Vertebrata

A

Notochord becomes backbone.

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5
Q

All Vertebrates have _____ circulatory system

A

closed

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6
Q

All Vertebrates have ______ symmetry

A

bilateral

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7
Q

All Vertebrates have what type of coelem?

A

True coelom

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8
Q

All Vertebrates have _ germ layers

A

3

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9
Q

All Vertebrates have type of skeleton

A

endoskelton

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10
Q

How do all vertebrates reproduce?

A

sexual reproduction

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11
Q

What does Endothermic mean

A

warm-blooded

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12
Q

What does Ectothermic mean

A

cold-blooded

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13
Q

Jawless fish have what type of mouth?

A

sucker like mouth (no jaws)

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14
Q

Do jawless fish have fins?

A

no

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15
Q

Describe jawless fish skeletons

A

Cartilage skeleton

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16
Q

Example of jawless fish

A

lamprey & hagfish

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17
Q

What is the skeleton of cartilage fish like?

A

cartilage… duh

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18
Q

What is the circulatory system of cartilage fish like?

A

2 chambered hearts

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19
Q

What is the lateral line system for?

A

detecting vibrations

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20
Q

Describe the nervous system of cartilage fish

A

poor eyesight, great olfactory

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21
Q

Examples of cartilage fish

A

sharks, skates, rays

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22
Q

Do cartilage fish have a lateral line system?

A

yes

23
Q

What is the circulatory system of bony fish like?

A

2 chambered hearts

24
Q

Do bony fish have a lateral line sytem?

A

yes

25
Q

Do bony fish have a swim bladder?

A

yes

26
Q

bony fish have _______ over gills

A

operculum

27
Q

Describe the nervous system of bony fish

A

good smell and eyesight

28
Q

Examples of bony fish

A

perch, bass, flounder

29
Q

Amphibia were the first what?

A

land vertebraes

30
Q

Describe the circulatory system of amphibians

A

3 chambered hearts

31
Q

How do amphibians respire?

A

through skin/lungs

32
Q

Amphibians need _____ to breed

A

water

33
Q

Do amphibians have scales or claws?

A

no

34
Q

Describe the circulatory system of reptiles

A

imperfect 4 chambered hearts

35
Q

Describe the skin of reptiles

A

dry and scaly

36
Q

Reptiles lay _______ eggs

A

amniotic

37
Q

Birds have what for insulation?

A

down feathers

38
Q

What makes birds lighter?

A

air sacs and hollow bones

39
Q

Birds have _ chambered hearts

A

4

40
Q

Are eggs internally or externally fertilized in birds?

A

internally

41
Q

Birds lay ________ eggs

A

amniotic

42
Q

In placental mammals, young develops where?

A

in uterus

43
Q

In marsupials, young develops where?

A

inside pouch

44
Q

In monotremes, young develops where?

A

in eggs

45
Q

What are chiroptera?

A

bats

46
Q

What are carnivora?

A

dogs, cats, bears, raccoons

47
Q

What are rodentia?

A

rodents

48
Q

What are insectivora?

A

long snoutted mammals. ex: shrews, moles

49
Q

What are cetacea?

A

whales, dolphins

50
Q

What is imprinting?

A

A process whereby a young animal follow the characteristics of his/her mother after hatching

51
Q

What is estivation?

A

prolonged torpor or dormancy of an animal during a hot or dry period.

52
Q

What is oviparous?

A

producing young by means of eggs that are hatched after they have been laid by the parent.

53
Q

What is viviporous?

A

birthing live young that have developed inside the body of the parent.

54
Q

What is oviviviporous?

A

producing eggs that are hatched within the body, so that the young are born alive but without placental attachment, as certain reptiles or fishes.

Magnet Biology (29 decks)

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