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Course: UP Class 11th Biology > Unit 4
Lesson 1: Basis of classificationClassification of animals
Here we delve into some criteria used to classify animals - levels of organization, symmetry, the number of tissue layers, and coelom, and have a quick overview of the different animal phyla. Created by Moumita Sen.
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- what is diploblastic ?(1 vote)
- having a body derived from only two embryonic cell layers (ectoderm and endoderm, but no mesoderm), as in sponges and coelenterates.(3 votes)