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52. Define the terms and give one example of each : (a) Bilateral symmetry (b) Coelom (c) Triploblastic

52. Define the terms and give one example of each :
(a) Bilateral symmetry
(b) Coelom
(c) Triploblastic

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 8740 Points
9 months ago
(a) Bilateral symmetry : When the body have similar parts fixed around a common central axis. Parts of these animals at any point of radius have similar structure to that of other. The left and the right halves of the body are same in bilateral symmetry. The organisms which possess this type of symmetry are called bilaterally symmetrical organisms, e.g. butterfly, human, crab. (b) Coelom : A coelom is fluid-filled body cavity that lies in between the body wall and alimentary canal. It is typically found in multicellular organisms. (c) Triploblastic : Triploblastic animals are the animals whose cells body develops from three layers : the outer ectoderm, inner endoderm and the third germinal layer mesoderm which is in between outer ectoderm and the endoderm. Example : Tapeworm.

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