Reino animalia moluscos
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REINO ANIMALIA
Grupo: Invertebrados
Filo: Mollusca
by prof. LENO
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Características:
• Do latim (mollis, mole) devido a consistência macia e flexível do corpo;
• Podem ou não possuir a concha calcária;
• É o segundo maior filo contendo cerca de 10 mil espécies já descritas.
by prof. LENO
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Representantes:
• Ostras
• Mexilhões
• Lesmas
• Caramujos
• Caracóis
• Lulas
• polvos
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Classe Anfineuros
• Animais marinhos;
• Vivem sobre rochas, geralmente em águas rasas;
• Alimentam-se de algas;
• Representados pelos Quítons.
by prof. LENO
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by prof. LENO
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by prof. LENO
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Classe Escafópodes• Apresentam concha tubular ligeiramente curva;
• Animais marinhos;
• Vivem enterrados no substrato;
• Capturam alimentos através de tentáculos ligados próximos à boca;
• São representados pelos Dentálios.by prof. LENO
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by prof. LENO
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Classe Gastrópodes
REPRESENTANTES:
• Caramujos;
• Lesmas;
• Caracóis;
by prof. LENO
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Características
• Podem ser: Marinhos, Terrestres, Dulcícolas.
• São UNIVALVES.
• Exceto as Lesmas.
• São a maior classe entre os moluscos.
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RÁDULA
• É uma estrutura que auxilia na “ raspagem” dos
alimentos
by prof. LENO
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Podem ser apreciados na culinária
SCARGOT
by prof. LENO
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Ou se tornarem pragas
by prof. LENO
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• Ao manusear use luvas;
• Não o utilize como alimento;
• Quebre a concha sempre que possível.
by prof. LENO
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by prof. LENO
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Classe pelecípodes
• Animais Marinhos;
• Respiram através de brânquias,
• Chamados de BIVALVES;
• Representados pelas Ostras e Mariscos.
by prof. LENO
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by prof. LENO
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by prof. LENO
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by prof. LENO
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Animais filtradores
• Ao contrário dos univalves os bivalves NÃO possuem a rádula.
• Se alimentam de partículas orgânicas.
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Formação de pérolas
• Apenas algumas ostras podem produzir pérolas;
• Se formam quando algum corpo estranho entra na concha do animal, o manto que ajuda na formação da concha, começa a cobrir o corpo invasor como sistema de defesa, assim formando a pérola.
by prof. LENO
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by prof. LENO
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by prof. LENO
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Classe Cefalópodes
• Moluscos com cabeça bem desenvolvida;
• Sistema de sangue fechado;
• Possuem tentáculos;
• Animais alto grau de inteligência.
by prof. LENO
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Representantes
• Polvo ► sem concha;
• Lula ► concha interna;
• Nautilus ►concha externa.
by prof. LENO
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