Phylum -Coelenterates Flashcards
Coelenterates live in which type of water?
Marine forms
Movement of coelenterates?
Sessile/free swimming
Coelenterates are also known as?
Cnidaria
Cnidaria name is derived from?
Cnidoblasts or cnidocytes
Cnidoblasts or cnidocytes are present on?
Tentacles and the body
Cnidoblasts are used For
Anchorage
Defence
Capture of prey
Mouth is present on?
Hypostome
Digestion in coelenterates is
Both intracellular and extracellular
Corals skeleton is made of
Calcium carbonate
basic body form of coelenterates are?
Polyp
Medusa
Movement of polyp is
Sessile
Polyp example?
Hydra,adamsia
Medusa is
Free swimming and umbrella shaped
Medusa example
Aurelia or jellyfish
What is metagenesis?
Cnidarians which exist in both polyp and Medusa forms exhibit alternation of generation