Which phylum has a reduced coelomic cavity?

Phylum Mollusca has a reduced coelomic cavity. Mollusca is one of the most diverse groups of animals on the planet, with at least 50,000 living species. Some characteristic features are

  • They are bilaterally symmetrical.
  • The body is soft and unsegmented.
  • They have tissue-system grade of body organization
  • Sense organs consist of eyes, statocysts, and receptors for touch, smell, and taste.

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