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Biology > Chapter 6 & 7 Porifera, Cnidaria, and Ctenophores > Flashcards

Chapter 6 & 7 Porifera, Cnidaria, and Ctenophores Flashcards

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1
Q

filter feeders

A

Any feeding process by which particulate food is filtered from water in which it is suspended.

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2
Q

ostium

A

Opening

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3
Q

osculum

A

Excurrent opening in a sponge

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4
Q

choanocytes

A

take in sperm, transform into carrier cells, and carry sperm through mesohylto oocytes

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5
Q

collagen

A

Tough, fibrous protein occurring in vertebrates as the chief constituent of collagenous connective tissue; also occurs in invertebrates—for example, the cuticle of nematodes.

Skeletons of sponges are made up of ________ and spicules

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6
Q

asconoid

A

Simplest form of sponges, with canals leading directly from the outside to the interior

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7
Q

syconoid

A

They have a tubular body and a single osculum. Choanocyte layer is folded back and forth to make canals

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8
Q

leuconoid

A

organization is the most complex of the sponge types and permits an increase in sponge size. Largest in size

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9
Q

incurrent canal

A

Water, entering the body through dermal pores, moves first to ____________ _____________

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10
Q

radial canal in sponges

A

___________ ________ lined with choanocytes

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11
Q

mesohyl

A

Gelatinous matrix surrounding sponge cells; “connective tissue” of the sponges

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12
Q

pinacocyte

A

Flattened cells comprising dermal epithelium in sponges.

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13
Q

spicules

A

Amebocyte in sponges that secretes spicules.

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14
Q

spongin fibers

A

sdfv

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15
Q

silicious spicules

A

sdv s

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16
Q

calcareous spicules

A

sdv

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17
Q

intracellular digestion

A

sdv

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18
Q

phagocytosis

A

sdv

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19
Q

monoecious

A

sdv

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20
Q

parenchymula larva

A

vsdv

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21
Q

gemmules

A

svd

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22
Q

Hexactinellida

A

svd

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23
Q

choanoblasts

A

svd

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24
Q

Venus flower basket

A

svd

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25
Q

Calcarea

A

sdv

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26
Q

Demospongiae

A

sdv

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27
Q

carnivorous sponges

A

sdv

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28
Q

Homoscleromorpha

A

sdvs

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29
Q

diploblastic

A

vsds

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30
Q

radial symmetry

A

vd

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31
Q

sac-like body plan

A

sdv

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32
Q

cnidocytes

A

sdv

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33
Q

nematocysts

A

vd

34
Q

dimorphism

A

sdv

35
Q

polyp

A

vd

36
Q

medusa

A

vsv

37
Q

oral

A

svd

38
Q

aboral

A

sdv

39
Q

planula larva

A

sdv

40
Q

budding

A

sd

41
Q

strobilation

A

dv

42
Q

gastrovascular cavity

A

ss

43
Q

gland cells

A

sdv

44
Q

gastrodermis

A

sd

45
Q

epidermis

A

sdv

46
Q

mesoglea

A

sdv

47
Q

epitheliomuscular cells

A

sd

48
Q

nerve net

A

sd

49
Q

hydranths

A

sdv

50
Q

gonangium

A

sd

51
Q

gonopore

A

sdv

52
Q

velum

A

sd

53
Q

scyphistoma

A

sdv

54
Q

strobila

A

sdf

55
Q

ephira

A

sdfv

56
Q

rhopalium

A

fsds

57
Q

statocyst

A

sdsdf

58
Q

ocelli

A

dsdf

59
Q

zooxanthellae algae

A

sdfs

60
Q

coral bleaching

A

dfv sd

61
Q

ocean acidification

A

ds

62
Q

ctenophores

A

adc

63
Q

comb-like plates

A

sadsd

64
Q

colloblasts

A

dsds

65
Q

photocytes

A

sds

66
Q

multicellular

A

ds

67
Q

archaeocyte (amoebocyte)

A

as

68
Q

How many speciesof sponges have been described?How many occur in freshwater?

A

safa

69
Q

What is the most diverse marine ecoregion? What is the most diverse region for freshwater sponges?

A

sfa

70
Q

What are the four classes of sponges? What is the main characteristic used to classify sponges?

A

asas

71
Q

What is the function of the following cells/structures: choanocytes, amoebocytes, pinacocytes, spicules, and gemmules.

A

asfas

72
Q

Briefly describe the three canal systems.

A

asdasa

73
Q

How do sponges reproduce sexually? How about asexual

A

asfasc

74
Q

Within what class are carnivorous sponges classified?

A

asca

75
Q

How many species of carnivorous sponges have been described?

A

asd

76
Q

What adaptations are present in carnivorous sponges that enable them to function as predators instead of filter feeders?

A

as

77
Q

How many species of Cnidarians have been described?How many occur in freshwater?

A

asd

78
Q

What are the four classes of cnidarians?

A

asd

79
Q

What is the function of the following cells/structures: cnidocytes, gland cells, hydranth, gonangium, rhopalium, colloblasts, photocytes.

A

dvs

80
Q

What are the current approaches to save corals discussed in class?

A

vsd

81
Q

Briefly describe Obeliaand Aurelialife cycles(they belong to different classes).

A

vdsd

82
Q

How do ctenophorans obtain food? How is their digestive system different from cnidarians?

A

sdas

Biology (4 decks)

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