Question

what is platyhelminthes

write in brief

Answer 1

The flatworms, flat worms, Platyhelminthes, Plathelminthes, or platyhelminthes are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates. Unlike other bilaterians, they are acoelomates (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.

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Answer 2

a phylum of worms having bilateral symmetry and a soft, usually flattened body, comprising the flatworms.

Platyhelminthes is a very interesting phylum that contains nearly 20,000 species. These organisms are generally hermaphrodites, meaning they can have both male and female sexual organs and can produce offspring on their own. They're also soft-bodied invertebrates (they have no spine), and much like humans, flatworms have bilateral symmetry, which means that if you drew a vertical line down the middle of the animal, the left side of the organism would mirror the right side.