Question
Download Solution PDFWhich 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?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Platyhelminthes.Key Points
- Platyhelminthes are also known as flatworms.
- Flatworms have unsegmented, bilaterally symmetrical, soft bodies, with a triploblastic construction (comprising three layers of cells) and a lacking coelom, skeleton, and anus.
- Example includes Planaria, Liver fluke (Fasciola hepatica), and Tapeworm.
Additional Information
- Cnidaria includes jellyfish, corals, and sea anemones.
- They have radial symmetry, a single body opening, and stinging cells called cnidocytes.
- Ctenophora includes comb jellies.
- They have radial symmetry and cilia for movement but also have a complete digestive system.
- Porifera includes sponges.
- They have asymmetrical or radial symmetry, no true tissues, and filter food through pores in their bodies.
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