Which among the following is coelomate, bilateral and has organ system level of organization?(a) Hemichordates(b) Aschelminthes(c) Coelenterata(d) PlatyhelminthesThis question was addressed to me in quiz.The question is from Basis of Classification in Animals in portion Animal Kingdom of Biology – Class 11

Which among the following is coelomate, bilateral and has organ system

1.	Which among the following is coelomate, bilateral and has organ system level of organization?(a) Hemichordates(b) Aschelminthes(c) Coelenterata(d) PlatyhelminthesThis question was addressed to me in quiz.The question is from Basis of Classification in Animals in portion Animal Kingdom of Biology – Class 11
Answer» Correct option is (a) Hemichordates Best explanation: ANIMALS are classified considering several factors like level of organization in the organism, symmetry, ARRANGEMENT of CELLS in the embryo, presence or absence of coelom, segmentation in the organism and presence or absence of notochord. Hemichordate is ONE such organism which has organ SYSTEM level of organization, bilateral symmetry and body cavity.

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