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Magnet Biology > Worms > Flashcards

Worms Flashcards

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1
Q

What phyla are flatworms?

A

Plathelminthes

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2
Q

What phyla are roundworms?

A

Nematoda (Ashelminthes)

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3
Q

What phyla are annelids?

A

Annelida (segmented worms)

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4
Q

Example of flatworms:

A

planarians, marine flatworms, tapeworms

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5
Q

Example roundworms:

A

roundworms, vinegar eels, pinworms, hookworms

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6
Q

Example annelida

A

earthworms, leeches, brsitleworms, sandworms

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7
Q

All 3 worms have how many germ layers?

A

3

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8
Q

All 3 worms are __lateral

A

bilateral

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9
Q

What is the only type of worm that is segmented?

A

annelids

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10
Q

Body cavity of flatworms

A

absent

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11
Q

Body cavity of roundworms

A

pseudomcoelem

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12
Q

Body cavity of annelids

A

true coelem

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13
Q

Regeneration is only in what type of worm?

A

flatworms

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14
Q

Do worms have cephilization?

A

yes

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15
Q

How do flatworms move?

A

the glide, twist, and turn with cilia

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16
Q

How do roundworms move?

A

with a thrashing motion

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17
Q

How to annelids move?

A

peristalsis or muscles

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18
Q

All worms have what type of skeleton?

A

hydrostatic

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19
Q

Flatworms have how many body openings for digestion and excretion?

A

one

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20
Q

____ cells remove wastes in flatworms

A

flame

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21
Q

Roundworms have how many body openings for digestion and excretion?

A

2

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22
Q

In roundworms, how is waste excreted?

A

through body walls

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23
Q

Annelids have how many body openings for digestion and excretion?

A

2

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24
Q

In annelids, how is waste removed?

A

through nephridia

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25
Q

What is the only phyla of worms that have a circulatory system?

A

annelids

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26
Q

Describe the circulatory system in annelids

A

blood is circulated through blood vessels in closed circulatory system

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27
Q

How do flatworms and roundworms respire?

A

through skin. they have no respiratory organs

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28
Q

How to annelids respire?

A

skin; aquatic annelids have gills

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29
Q

Can flatworms reproduce sexually, asexually, or both?

A

both

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30
Q

Can roundworms reproduce sexually, asexually, or both?

A

sexually only

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31
Q

Can annelids reproduce sexually, asexually, or both?

A

sexual only

32
Q

How to flatworms reproduce asexually?

A

through fission

33
Q

Describe sexual flatworms and annelids

A

hermaphrodites (only some annelids are hermaphrodites)

34
Q

What is the eyespot on a flatworm for?

A

sees light & dark

35
Q

What is the head on a flatworm for?

A

brain-like ganglia located here

36
Q

What is the gastrovascular cavity on a flatworm for?

A

transports food

37
Q

What is the mouth on a flatworm for?

A

food enters & waste exits

38
Q

What is the pharynx of a flatworm for?

A

“straw” sucks up food; extends from mouth during feeding

39
Q

What are flame cells for?

A

removes excess water and nitrogenous wastes

40
Q

Planarians are in what class?

A

Turbellaria

41
Q

Planarians live where?

A

freshwater-under leaves and rocks

42
Q

Planarians feed on what

A

dead organisms

43
Q

Are Planarians parasitic?

A

no they are free-living

44
Q

Can planarians regenerate?

A

yes

45
Q

What is the solex of a tapeworm?

A

head region.

46
Q

What are proglottids of a tapeworm

A

individual sections of the worm. they contain 100,000 eggs each

47
Q

Flukes are in what group?

A

flatworms

48
Q

What class are flukes under?

A

Trematoda

49
Q

Flukes live where?

A

in digestive tracks or liver

50
Q

Liver flukes live where?

A

in liver

51
Q

Blood flukes feed off of what?

A

blood cells & bodily fluids

52
Q

Ascaris are in what group?

A

roundworm (nematodes)

53
Q

Ascaris live in what?

A

intestines

54
Q

Ascaris feed off what?

A

blood

55
Q

How are ascaris eggs ingested?

A

from dirty hands or unwashed vegetables contaminated with feces

56
Q

Ascaris eggs hatch where and enter where?

A

eggs hatch in intestines and enter bloodstream

57
Q

Ascaris larval worms bore into where?

A

lungs

58
Q

How to larval ascaris move to intestines?

A

they are coughed up from the lungs and swallowed

59
Q

Trichinella are in what group?

A

roundworms

60
Q

Trichenella bore in what tissue?

A

muscle

61
Q

Trichenella can also live in what type of organ?

A

intestines

62
Q

what to trichinella cause?

A

painful cysts

63
Q

How does one get trichinella?

A

from ingesting cysts in undercooked/raw meat (usually pork)

64
Q

Hookworms are in what group?

A

roundworms

65
Q

Where to hookworms live?

A

in intestines

66
Q

Eggs are deposited on _____ for contaminated wastes

A

soil

67
Q

How to hookworms infect their host?

A

they burrow into feet or exposed skin

68
Q

Hookworm larvae travels through ________, into the _____

A

bloodstream; lungs

69
Q

What happens after hookworm larvae reaches the lungs?

A

it is coughed up and swalloed

70
Q

Hookworms attatch to where to mature?

A

intestinal wall

71
Q

What is the setae in earthworms?

A

bristels for movement located on the ventral side

72
Q

What is the clitellum in earthworms?

A

enlarged segment, secretees mucus, contains the reproductive structures

73
Q

What is the nephridia in earthworms?

A

collects and removes wastes

74
Q

What is the crop in earthworms?

A

temporary food storage

75
Q

What is the gizzard in earthworms?

A

grinds food

76
Q

Instead of a nose, earthworms have what?

A

chemoreceptors

Magnet Biology (29 decks)

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