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Kingdom Animalia > Phylum Cnidaria > Flashcards

Phylum Cnidaria Flashcards

1
Q

previous phylum name of Phylum Cnidaria

A

Phylum Coelenterata

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2
Q

Phylum Ctenophora are?

A

comb jellies (no stinging cells)

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3
Q

meaning of Coelenterata

A

hollow cavity

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4
Q

sticky cells

A

colloblasts

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5
Q

meaning of Cnidarian

A

stinging creature

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6
Q

habitat of jellyfish

A

mostly marine, some freshwater

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7
Q

habit of jellyfish

A

solitary or colonial

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8
Q

habit form of jellyfish

A

medusa and polyp

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9
Q

sessile form of jellyfish where tentacles are at the top (asexual stage)

A

polyp

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10
Q

free swimming form of jellyfish where tentacles are at the bottom (sexual stage)

A

medusa

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11
Q

body parts/ structure of a jellyfish

A

bell, mouth, velarium, tentacles

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12
Q

germ layers of a jellyfish

A

ectoderm (cnidocytes), endoderm (digestive cells) , mesoglea (water content)

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13
Q

primary organ of digestion and circulation

A

gastrovascular cavity (GVC) or coelenteron

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14
Q

specialized cells of jellyfish

A

nematocyst and cnidocyte

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15
Q

an organelle consisting of a coiled, thread-like stinger

A

Nematocyst

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16
Q

stinging cells

A

Cnidocyte

17
Q

purpose of stinging cells

A

defense mechanism

18
Q

respiration and excretion

A

simple diffusion

19
Q

nervous system

A

nerve nets

20
Q

reproduction

A

sexual (fertilization) and asexual (budding)

21
Q

stages of growth of a Medusa

A
  1. gametes
  2. planula
  3. scyphistoma
  4. young strobila
  5. strobila
  6. ephyra (young medusa)
  7. adult medusa
22
Q

secrete sperm and egg to form larva which then emerges and find a substrate to reproduce

A

gonads

23
Q

jellyfish with thin tentacles are?

A

venomous

24
Q

classes under Phylum Cnidaria

A

Cubozoa, Scyphozoa, Anthozoa, Hydrozoa

25
Q

box jellyfish

A

Class Cubozoa

26
Q

true jellyfish in medusa form

A

Class Scyphozoa

27
Q

corals and sea anemones

have a symbiotic relationship with algae

A

Class Anthozoa

28
Q

medusoid (“fake” medusa) polyp

A

Class Hydrozoa

Kingdom Animalia (7 decks)

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