materi kul. bio aver coelenterata
TRANSCRIPT
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COELENTERATA
Chrysaora fuscescens
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Anggauta dari filum ini belum memiliki rongga
tubuh yang sebenarnya (coelom), tetapihanya rongga central yang disebut
COELENTERON
Coelenteron berfungsi sebagai pencernaan
makanan dan mengedarkan sari-sari
makanan
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• Dinding tubuh terdiri dari dua lapisan
jaringan yaitu: lapisan epidermis dangastrodermis atau endodermis.
• Diantara kedua lapisan tersebut terdapatlapisan non seluler (mesoglea)
• Mesoglea merupakan hasil sekresi darilapisan epidermis dan gastrodermis
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Disebut juga: CNIDARIAHABITAT: Sebagian besar hidup di laut dan
hanya 14 species yang hidup di
air tawar
Biasanya hidup di perairan dangkal:
melekat pada substrat atau berenang
bebas
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MORFOLOGIS
• Tubuh simetri radial
• Strutuk tubuh dibedakan: POLYP danMEDUSA
• Bentuk polip cenderung silindris, dengansatu ujung disebut bagian oral dan bagianlain disebut aboral
• Bentuk medusa seperti lonceng ataumangkuk terbalik dengan bagian mulitmengarah ke bawah
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Medusa polip
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Model koloni
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Cnidaria: Sea anemones, corals, jellyfish,
sea pens, hydra
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jellyfish
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REPRODUKSI
• Aseksual: terjadi pada stadium polip
melalui budding
• Seksual: terjadi pada stadium medusa
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lifecycle of the Cnidaria.
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Life cycle of a jellyfish 1–3 Larva searches for site
4–8 Polyp grows 9–11 Polyp strobilates 12–14 Medusa
grows
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Berdasarkan bentuk, ukuran dan
siklus hidupnyaDIBAGI MENJADI 4 KELAS
• Hydrozoa: bentuk polip, medusa atau dua-
duanya; koloni atau soliter, ukuran kecil tidak
mencolok (diameter 0,5 - 6 cm)
• Scypozoa: Polip kecil dan medusa lebih besar
• Cuboza: dulu termasuk kelas scypozoa, polip
kecil dan sesil, medusa(termasuk ubur-ubur sejati) ex: Chironex
• Anthozoa: Polip, soliter atau koloni
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SOAL
1. Jelaskan cara dari salah satu anggauta
dari Coelenterata menangkap makanan,
dan proses pencernaannya
2. Jelaskan disertai gambar skematis
reproduksi dari Hydrozoa
3. Jelaskan nilai ekonomis dari filum
Coelenterata