What is the function of Holdfast?

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Solution

Holdfast
A holdfast is a root-like structure that anchors sessile aquatic creatures to the substrate, such as seaweed, stalked crinoids, other sessile algae, benthic cnidarians, and sponges.
The shape and structure of holdfasts vary according to the species and substrate type.
Holdfast aids in the brown algae's anchoring to the substratum.

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