lab 3 Flashcards

1
Q

what classes are in phylum cnidaria

A

hydrozoa
scyphozoa
anthozoa

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2
Q

what are some organisms in class hydrozoa

A

hydras
obelias
siphonophores
hydrocorals

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3
Q

what is a hydra

A

athecate hydroidw

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4
Q

what is a obelia

A

thecate hydroid

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5
Q

what organism is in class scyphozoa

A

aurelia

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6
Q

what subclasses are in class anthozoa

A

hexacorallia
octocorallia

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7
Q

what organisms in subc hexacorallia

A

anemones
stony corals

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8
Q

what organisms in subc octocorralia

A

sea pens and gorgonian sea fans

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9
Q

what is the hypostome

A

cone shaped structure around mouth

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10
Q

tentacles of hydrozoa

A

feeding, have nematocystsba

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11
Q

basal disc

A

attach to substrate

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12
Q

hydrozoa what body forms

A

polyp and medusa

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13
Q

cnidocyte

A

defensive cell

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14
Q

cnidae

A

fire needle

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15
Q

nematocyst

A

type of cnidae

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16
Q

epithelio muscular cells

A

produce adhesive vesicles that attach to shit

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17
Q

what is gestrodermis

A

inside layer

18
Q

velum

A

used for jet propulsion in hydrozoa medusa

19
Q

manubrium

A

feeding tube near mouth

20
Q

radial canals

A

contract to push water out

21
Q

mesoglea

A

gelatinous middle layer

22
Q

what does obelia have thats fuckin weird

A

gastrozooid and gonozoid

23
Q

gastrozoid

A

polyp tentacles, feeding

24
Q

gonozoid

A

polyp tentacles, reproductive

25
Q

mouth lobe

A

cover manubrium in scyphozoa, bring in food

26
Q

gastric pouches

A

contain gonads

27
Q

radial canals

A

branched, alsmost like veins

28
Q

mesogloea

A

function as hydrostatic skeleton in scyphozoa

29
Q

rhopalia

A

light sensing organs

30
Q

life cycle scyphozoa

A

planula larva–> scyphistoma(polyp stage) –> strobula–> ephyra

31
Q

ephyra

A

medusa, can grow into individual

32
Q

strobulation

A

form stacks of pankakes which are budding ephyra

33
Q

pedal disc

A

anthozoa
basal disc

34
Q

septa

A

extra sirface area, have gonads

35
Q

siphonoglyphs

A

slits in pharynx, moves water and food down

36
Q

acontia

A

stick outside body for feeding and defense, have nematocytsts

37
Q

gastrovascular cavity

A

digestion

38
Q

pharynx

A

tube leading to gastrovascular cavity

39
Q

what is wild bout phylum ctenophora

A

they have comb rows

40
Q

comb rows

A

for feeding instead of oral arms, not real tentacles but are ciliated arms