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Zoologi > Cephalochordater > Flashcards

Cephalochordater Flashcards

1
Q

Hvilke chordattræk har cephalochordater?

A

Postanal hale, gælletarm, chorda(fra hale til hoved)

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2
Q

Hvad er de 4 forskelle på Deuterostomer og protostomer?

A

Deuterostomer: Mund modsat urmund, radiær kløvning, indeterministiske blastomerer, Enterocoeli (coelem dannet fra urtarm)

Protostomer: Mund ved urmund, Spiral kløvning, deterministisk blastomerer, schizocoeli (coelem dannet ved spaltedannelse)

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3
Q

Fødeintagelses organer

A

Buccalcirrer yderst (filterer sediment), hjulorganet (anden filtration), velum (velartentakler)

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4
Q

Nyretype

A

Protonefridier

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5
Q

Vandstrøm

A

Ind af munden, over hjulorgan og velum, viderer igennem gælletarm og ud af atrioporus

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6
Q

Respirationsorgan

A

Cilliebeklædt gæller forbundet med tværbroer

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7
Q

Nævn betegnelser på blodstrømmen

A

se powerpoints fra LØ

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8
Q

Nyretype

A

Protonefridier med solenocytter

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Zoologi (24 decks)

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