synapomorphie 3 Flashcards

1
Q

vertebre

A

vertebré

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2
Q

le cerveau se découpe en trois régions

A

vertebré

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3
Q

crâne

A

vertébré

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4
Q

appareil lingual par un piston

A

mixinoïde

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5
Q

La bouche est entourée d’une ventouse et présente une langue avec des dents

A

pétromyzontide

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6
Q

les arcs branchiaux, sont externes par rapport aux branchies

A

pétromyzontides

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7
Q
  1. Métamorphose d’une larve pélagique avec toutes les caractéristiques des Chordés en un adulte sessile sans notochorde, tube neural et queue post-anale
A

Urochordés

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8
Q
  1. Présence d’une tunique de polysaccharides proche de la cellulose.
A

urochordé

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9
Q

Notocorde

A

Chordé

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10
Q

tube neural dorsal

A

chordé

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11
Q

queu postanal muscularisée

A

chordé

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12
Q

Endostyle ou glande thyroide

A

chordé

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13
Q

La notocorde se prolonge devant la bouche

A

céphalochordés

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14
Q

Musculateur segmenté à l’interieur de la notochorde et reliée au tube nerveux dorsal

A

céphalochordé

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15
Q

-Glissement du foramen magnum sous la calotte crânienne

A

homo

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