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InterviewSolution
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If you are given a specimen, what are the steps that you follow to classify it? |
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Answer» The following features are used as the basis of animal classification. Level of Organization:- Identify the level of organization like cellular, tissue or a still higher level of Organization organ level of organization. Body symmetry: Identify if the animals are asymmetrical, radially or have bilateral symmetry. Diploblastic of triploblastic:- based on the presence of a number of embryonic layers. Diploblastic: two embryonic layers as external ectoderm and as internal Endoderm triploblastic: three embryonic layers as external ectoderm, middle mesoderm and inner endoderm. Body cavity: The presence or absence of body cavity animals possessing coelom are called coelomates. Animals in which body cavity absent are called acoelomates Segmentation: some animals show segmentation of body externally or internally Presence of Notochord: chordates are animals with notochord and non-chordates which don’t form notochord during embryonic development. |
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