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  4. Most of the asymmetrical acoelomates belong to phylum?

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Q. Most of the asymmetrical acoelomates belong to phylum?

NTA AbhyasNTA Abhyas 2022

Solution:

Types of animals on the basis of symmetry -
1. Asymmetrical - No particular symmetry. Examples : Most of sponges.
2. Radially symmetrical - When any plane passing through the central axis of the body divides the organism in 2 equal halves. Examples : Few sponges, coelenterates, ctenophores and adult echinodermates.
3. Bilaterally symmetrical - Body of organism is divisible into 2 equal halves only in one plane. Examples : Platyhelminthes, aschelminthes, annelids, arthropods, molluscs, echinodermates and chordates.