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Biology 11 > Chordates > Flashcards

Chordates Flashcards

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1
Q

invertebrate chordates which do not have fins

A

Lancelets

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2
Q

a membrane which serves as a transparent eyelid in frogs

A

Nictitating membrane

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3
Q

Fishes whose eggs hatch and form within their body leading to “live” birth

A

Ovoviviparous

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4
Q

An extra respiratory organ in amphibians ( must be kept moist)

A

Their skin

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5
Q

Which class of vertebrates are birds from?

A

Aves

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6
Q

A substance that covers the outer surface of most mammals

A

Hair

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7
Q

A membrane that aids in a frogs hearing

A

Tempanic membrane

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8
Q

A structure found in many organisms in which urine , wastes, and gametes leave the body.

A

A cloaca

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9
Q

These are present in adult amphibians for respiration.

A

Lungs

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10
Q

Fish which have thin fins are called __________.

A

Ray finned

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11
Q

Fish that has no jaw and produces a disgusting amount of slime

A

Hagfish

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12
Q

Which glands produce milk in mammals?

A

Mammary glands

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13
Q

Structures that aid in flight and provide insulation for birds

A

Feathers

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14
Q

Individual segments that together make up a backbone

A

Vertebrae

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15
Q

Number of chambers in a heart of an amphibian

A

Three

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16
Q

Fishes have thicker , bone supported fins are called _______. Believed that terrestrial organisms evolved from them.

A

Lobe finned fishes

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17
Q

Major advancement in evolution for fish in their ability to feed was when they developed ______.

A

Jaws

18
Q

Parasitic jawless fish which sucks body fluids out of host

A

Lamprey

19
Q

Class of organisms that are aquatic as larvae and terrestrial when adults

A

Amphibia

20
Q

Class of vertebrates that have dry and scaly skin , lungs and terrestrial eggs

A

Reptilia

21
Q

The class that includes sharks, skates and rays

A

Chondrichthyes

22
Q

A hollow nerve cord in chordates located near the ______ surface of their body

A

Dorsal

23
Q

A type of egg that can develop in a terrestrial environment without drying out

A

Amniotic egg

24
Q

A supporting rod running through body of chordates at some point in their life

A

Notochord

25
Q

Fishes whose young develop inside the mothers body without there being an egg

A

Viviparous

26
Q

Number of chambers in a birds heart

A

Four

27
Q

Class that includes jawless fish

A

Agnatha

28
Q

Class which contains fish like salmon, tuna and perch

A

Osteichtyes

29
Q

What do fish use to breathe?

A

Gills

30
Q

These ______ pouches are found near the throat region in all chordates at some point of their lives

A

Pharyngeal

31
Q

Organisms that depend on heat from outside the body, their surrounding environment

A

Ectothermic

32
Q

Chordates are characterized by a _____ , which extends beyond the anus for some time in their lives

A

Tail

33
Q

Filter feeding , invertebrate chordates

A

Tunicates ( sea squirts)

34
Q

Large piercing teeth found on roof of frogs mouth

A

Vomerine teeth

35
Q

Structures covering outer surface of fish

A

Scales

36
Q

Substance that makes up a shark and a rays skeleton

A

Cartilage

37
Q

Organisms whose body temperature is regulated internally

A

Endothermic

38
Q

One direction respiration can be found in these organism :

A

Birds

39
Q

Number of chambers in the heart of a fish

A

Two

40
Q

What is the monotremes group in mammals?

A

Group that lays eggs

41
Q

Which group of mammals have their young mostly develop in their pouches ?

A

Marsupials

42
Q

Which group of mammals have their young develop inside the mothers body?

A

Placental mammals

Biology 11 (3 decks)

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