Question

About Platyhelminthes ​

Answer 1

Explanation:

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Answer 2

Answer:

The flatworms, flat worms, Platyhelminthes, or platyhelminths (from the Greek , platy, meaning "flat" and (root: , helminth-, meaning "worm")[3] are a phylum of relatively simple n, unsegmented, soft-bodied invertebrates. Unlike other they are (having no body cavity), and have no specialized circulatory and respiratory organs, which restricts them to having flattened shapes that allow oxygen and nutrients to pass through their bodies by diffusion. The digestive cavity has only one opening for both ingestion (intake of nutrients) and egestion (removal of undigested wastes); as a result, the food cannot be processed continuously.