vertebrados peixes
TRANSCRIPT
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VERTEBRADOS
• Animais com coluna vertebral
• A coluna vertebral protege a medula espinal
• O esqueleto interno:– Sustenta o corpo– Protege os órgãos– é ponto de apoio dos
músculos – locomoção
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Esclarecendo alguns termos...
Pecilotérmico X Homeotérmico(Ectotérmico) (Endotérmico)
Ovíparo, ovovivíparo, vivíparo
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PEIXES• Acredita-se que os primeiros peixes eram
parecidos com as lampréias e peixes-bruxas.• Esses peixes não possuem mandíbula e o seu
esqueleto é cartilaginoso.
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PEIXES CARTILAGINOSOS• Tubarões ou cações, raias e quimeras são
peixes cartilaginosos – esqueleto de cartilagem – são chamados condrictes
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PEIXES ÓSSEOS• São a maioria. Possuem esqueleto formado
por ossos.• São chamados osteíctes.
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