Question : Which group of Kingdom Animalia has unsegmented, bilaterally symmetrical, soft bodies, with a triploblastic construction (comprising three layers of cells) and a lacking coelom, skeleton and anus?
Option 1: Cnidaria
Option 2: Ctenophora
Option 3: Platyhelminthes
Option 4: Porifera
Correct Answer: Platyhelminthes
Solution : The correct answer is Platyhelminthes.
The group of Kingdom Animalia with unsegmented, bilaterally symmetrical, soft bodies, with a triploblastic construction and a lacking coelom, skeleton and anus is the phylum Platyhelminthes, also known as flatworms. Flatworms are a different group of about 25,000 species found in freshwater, marine, and land settings. They are normally tiny, ranging in length from a few millimetres to several metres.
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