Ascaris roundworm, coloured environmental scanning electron micrograph (ESEM). This is the head and mouth of the roundworm, with the mouth showing threefold symmetry. Ascaris is a parasitic roundworm (a type of nematode worm) with a length ranging from 20-40 centimetres. It attached to its host in the small intestine, where it feeds on the intestinal contents.

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TOP14051342

Source:

達志影像

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RM

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須由TPG 完整授權

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N/A

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