write short notes on the salinity features of anthozoa
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(1) Anthozoans are commonly referred to as sea anemones.
(2) Anthozoa includes sea anemones, corals, sea pens.
(3) All are marine forms. These are solitary or colonial.
(4) They are sedentary and only polypoid inform.
(5) Coelenteron is divided into several compartments by vertical septa called mesenteries.
(6) Mesoglea contains connective tissue. (7) Cnidocytes occur both in the ectoderm and endoderm and is cellular as contains amoebocytes.
(8) Germ cells are derived from the endoderm.
Eg: Adamsia (sea anemone), Gorgonia(sea fan), Pennatual (sea pen).
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Anthozoans include coral, sea fans, sea pansies and sea anemones. The sea anemones have a cylindrical, stout, muscular body while the sea fans and coral have a thin, slightly muscular body. All possess a smooth, slimy basal disc. This disc is used for sliding during migration or for attaching to the subsratum.
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