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The World Around Us!
Cnidarians are symmetrical. Cnidarians has a nervous system made up of nerve net. Their digestive system is a two way system. The excretory, circulatory and respiratory system all work using diffusion. Their skeletal system is a hydrostatic.
Hydrozoa includes hydras, they reproduse by budding.
Scyphozoa is exclusive to marine animals like jellyfish.
Anthozoa which at the adult stage they attach to the seabed like stony corals or soft corals.
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