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ZOOL 250 > PHYLUM CHORDATA > Flashcards

PHYLUM CHORDATA Flashcards

1
Q

Six major traits of the chordates:

A 
Pharyngeal gill slits
Endostyle
Notochord
Post-anal tail
Dorsal hollow nerve cord
Segmented myomeres
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2
Q

Adults resemble the larvae of primitive vertebrates and possess all the chordate characters

A

SubPh. Cephalochordata

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3
Q

Peculiar, highly derived, solitary or colonial filter feeders of the SubPh. Urochordata

A

Cl. Ascidiacea

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4
Q

Solitary, tadpole-lie animal that live in the open ocean (pelagic)

A

Cl. Larvacea

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5
Q

How does the sea squirts differ from other chordates?

A
  • covered by a complex tunic
  • have a huge pharynx with many ciliated gill slits
  • lack a notochord and nerve cord
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ZOOL 250 (16 decks)

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