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Annelida

Annelida. Ciri-ciri. Simetri bilateral, berbentuk seperti gelang ('anellus' = cincin) Memiliki rongga badan ⇒ Triploblastik Selomata Ruas tubuhnya (segmen) disebut Metameri terdiri dari alat ekskresi (nefridium) lubang reproduksi, otot dan pembuluh darah

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Annelida

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  1. Annelida

  2. Ciri-ciri • Simetri bilateral, berbentuk seperti gelang ('anellus' = cincin) • Memiliki rongga badan ⇒Triploblastik Selomata • Ruas tubuhnya (segmen) disebut Metameri terdiri dari alat ekskresi (nefridium) lubang reproduksi, otot dan pembuluh darah • Sistem pencernaan ⇒ lengkap/sempuna Sistem peredaran darah ⇒ tertutup

  3. TERBAGI MENJADI 3 KELAS • (berdasarkan keadaan rambut di permukaan tubuh), yaitu : 1. POLYCHAETA 2. OLIGOCHAETA 3. HIRUDINAE

  4. OLIGOCHAETA • Habitatnyaditanah, memilikisedikitrambut (oligo= sedikit, chaeta = rambut/bulu). • Contohcacingtersebutadalah : LumbricusterestrisdanPheretima sp. (keduanyadisebutcacingtanah). Mempunyai organ Klitellumyang berisisemuakelenjar, termasukkelenjarkelamin. Pernafasandilakukanolehpemukaantubuhnya. Makanandiedarkankeseluruhtubuhdengansistemperedarandarah.

  5. Lumbricus terrestris

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