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Sponges Biology > Cnidaria > Flashcards

Cnidaria Flashcards

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0
Q

Cniclarians

A

Two layers:
•Epiclermis:outer
•Castroclerms: inner

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1
Q

Physical characteristics

A

Body plan: radial symmetry
Medusa
Nervous tissue: nerve net, no brain
Body cavity: acoelomate

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2
Q

Sting cells

A

Activated one organism brushes against the tentacles and releases painful poison to their target

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3
Q

Reproduction

A

Asexually by budding or regeneration

Sexually by external fertilization

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4
Q

Consumers (most carnivores)

A

Have tentacles with nematocysts (paralyzes prey)
Digest it in coelenteron
Nutrients are absorbed and gases exchange inside cells

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5
Q

Mesoglea

A

jellylike substance found in between the 2 layers

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6
Q

Tentacles

A

flexible extention near digestive opening

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7
Q

Gastrovascar cavity

A

hollow gut in center of the body

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Sponges Biology (2 decks)

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