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BAB 9 DUNIA HEWAN

BAB 9 DUNIA HEWAN. Dibedakan INVERTEBRATA Terdiri dari Filum : 1. Porifera 2. Coelenterata 3. Plathyhelminthes 4. Nemathelminthes 5. Annelida 6. Mollusca 7. Arthropoda 8. Echinodermata. CHORDATA (Vertebrata ) Terdiri dari Kelas : 1. Pisces 2. Amfibi

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BAB 9 DUNIA HEWAN

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  1. BAB 9 DUNIA HEWAN Dibedakan • INVERTEBRATA TerdiridariFilum : 1. Porifera 2. Coelenterata 3. Plathyhelminthes 4. Nemathelminthes 5. Annelida 6. Mollusca 7. Arthropoda 8. Echinodermata • CHORDATA (Vertebrata ) TerdiridariKelas : 1. Pisces 2. Amfibi 3. Reptil 4. Aves 5. Mamalia

  2. PORIFERA • Hewanberpori Ciriciri : • Habitat umumnyadilautdangkal • Diploblastik (ektodan endoderm) • Simetri : radial atauasimetri • Bentukpolip/sesil(takbisaberenang atau menetap) • Respirasi : difusi • Pencernaan : Intrasel • Sistemsaraf : difus/jala • Reproduksi : a. Aseksual : tunas b. Seksual : fertilisasieksternal

  3. Strukturtubuh : • Bentukseperti vas bunga • Lap. ektodermtersusunatasselpinakosit • Lap. Mesogleaterdapat sel amoeboid danspikula (rangka) - Lap. Endoderm terdapatkoanosit (selleher)

  4. Berdasarkantipealiran air Poriferadibedakan : A. Ascon - tipe paling sederhana Pori/ostiaspongocoeloskulum Contoh : Leucosolenia B. Sycon Pori/ostiasaluran radial spongocoeloskulum Contoh : Scypha Pheronema C. Rhagon/Leucon - tipe paling rumit Pori/ostiasaluran radial bercabang-cabang spongocoeloskulum Contoh : Euspongia Spongilla

  5. KlasifikasiPorifera Dasarnya : zatpenyusunrangka (spikula) • Calcarea rangkadrzarkapur (CaCO3) contoh : - Sycon - Clathrina 2. Hexactinellida rangkadrzatsilikat(SiO2) contoh : - Pheronema - Hyalonema 3. Demospongia rangkadrzatspongin contoh : - Euspongia - Spongilla ManfaatPorifera : 1. Demospongiadimanfaatkansbgsponsmandi

  6. Niphates digitalis

  7. Clathrina

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