Textbook ExpertVerified Tutor
2 Nov 2021
Background and context
- Coelom is a cavity lined by mesoderm that may lie between body wall and gut wall in the body of animal.
- Phylum porifera to platyhelminthes are acoelomates as they don’t bear body cavity.
- Phylum aschelminthes is psuedocoelomate as the body cavity is not lined by mesoderm instead, mesoderm is present as scattered pouches in between endoderm and ectoderm.
- Phylum annelida to chordata are coelomates as they have body cavity.
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