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Q: Which group in the Animalia kingdom has an unsegmented, bilaterally symmetrical, soft body, with a triploblastic structure (three layers of cells) and lacks a coelom, skeleton and anus?
  • A. Flatworms (platyhelminthes)
  • B. Porifera
  • C. Ctenophora
  • D. Cnidaria
Correct Answer: Option A - The group in the Animalia, kingdom that has an unsegmented, bilaterally symmetrical, soft body with a triploblastic structure (three layers of cells ) and lacks a coelom, skeleton and anus is Flatworms (Platyhelminthes). Example includes planaria, liver fluke (Fasciola hepatica ) and tape worm.
A. The group in the Animalia, kingdom that has an unsegmented, bilaterally symmetrical, soft body with a triploblastic structure (three layers of cells ) and lacks a coelom, skeleton and anus is Flatworms (Platyhelminthes). Example includes planaria, liver fluke (Fasciola hepatica ) and tape worm.

Explanations:

The group in the Animalia, kingdom that has an unsegmented, bilaterally symmetrical, soft body with a triploblastic structure (three layers of cells ) and lacks a coelom, skeleton and anus is Flatworms (Platyhelminthes). Example includes planaria, liver fluke (Fasciola hepatica ) and tape worm.