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Comp Vert Anatomy 1 > Chapter 1Part2 > Flashcards

Chapter 1Part2 Flashcards

1
Q

What is Phylum Echinodermata

A

sea stars

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2
Q

Subphylum of Phylum Chordata

A

Cephalochordata-lancelets, Urochordata-sea sqiuirts (tunicates), Craniata (vertebrata)

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3
Q

What 5 characteristics do Phylum Chordata possess

A

Dorsal hollow nerve cord, Pharyngeal gill slits, Notochord, Post-anal tail, Endostyle or thyroid gland

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4
Q

What is Notochord

A

a hydrostatic organ; cartilage, resists axial compression

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5
Q

In most vertebrates…

A

Notochord replaced by vertebrae

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6
Q

Somites in embryos-

A

mesoderm segments; are precursor populations that give rise to important structures

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7
Q

Pharyngeal Gill Slits in mammals and other land vertebrates become…

A

structures of the lower jaw, face, and throat

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8
Q

Anapsid: primitive amniotes, later…

A

turtles

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9
Q

Synapsid: Therapsids-

A

mammalian ancestors

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10
Q

Diapsid: Dinosaurs, birds, all extant reptiles, except

A

turtles

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Comp Vert Anatomy 1 (40 decks)

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