How do taenias obtain food and make gas exchange, Biology

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How do taenias obtain food and make gas exchange?

Tapeworms have hooks and sucking structures on their heads (scolex) that fixate the parasite in the gut wall; these structures often do not injure the host tissue. The parasite gets food and makes gas exchange by absorption and diffusion across its skin; as it is a platyhelminth it does not have a digestive system or a circulatory system.

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