COELENTERATES PDF >> READ ONLINE
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Cnidaria (Coelenterates). 1. 1. Introduction a. Jellyfish, Hydra, corals and sea anemones b. Mainly in tropical oceans. 2. From and function a. Alternation of COELENTERATA: HYDROIDA. Phylum COELENTERATA. Class HYDROZOA. Order HYDROIDA. For convenience hydroids and medusae are listed separately. Phylum Coelenterata. As you read this, you probably must be wondering if this is another group of animals that you know nothing much about. But,Some problems of coelenterate ontogeny. J. M orph., 22: 493-549. HARGITT, G. T., 1916. Germ cells of coelenterates. II. Clava Mar 31, 2015 - Mar 14, 2012 - The body of a coelenterate is sac-like with a central digestive cavity called the enteron, to which there is only one entrance/exit, the mouth. The body wall consists The coelenterates show polymorphism as their zooids shows two forms i.e. polyp & medusa. ? The polyps are sessile & asexual zooids while the medusae are Coelenterata. * the phylum Coelenterata is also called Cnidaria by some and includes coral, hydra, and jellyfish. Cnidaria is the term used by out textbook. the medusae. The genus Obelia. is a coelenterate frequently encountered in biology classes. The polyp phase ia a
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