STRUCTURAL MODIFICATIONS FOR PARASITIC LIFE IN PLATYHELMINTHES

-Presence of cuticle which protects them from being digested by their host’s enzymes.
-Possession of hook and sucker for attachment into the host gut
-They have large surface area which enhances easy absorption of nutrients from their hosts gut
-They have a flattened membrane  which enhances easy diffusion of gases in and out of their body and this enables them to live successfully in an environment with less oxygen concentration
-Ability to easily regenerate any part of their body which enables them to survive in their host.

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