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Carac. visual: Corpo metamerizado (segmentado), cefalização, cerdas de quitina
Função ecológica: húmus e tuneis para entrada de água e ar.
Classes: Oligochaeta(poucas cerdas, Polichaeta (muitas cerdas), Achaeta (sem cerdas)
Carac. embrionárias: Triblasticos, protostomios, celomados
Sistema digestório: Completo com tiflossole (dobra do intestino para maior absorção)
Sistema Circulatório: Fechado (arcos aórticos)
Sistema excretor: Nefrideos e metanefrideos
Sistema nervoso: Ganglionar concentrado
Sistema reprodutor: Se tiver clitelo: Monoico. S não tiver: Dioico
Fecundação: externa (e cruzada nas minhocas)
Created by: 100002306446209
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