What anchoring structure do mosses have instead of roots

The correct answer is- Rhizoids

Explanation:

Mosses are the small plants that don't bear flowers, stems, and roots and they grow in clumps. As they do not have root they developed root-like structures to anchor in the soil called rhizoids. They show a similar structure with the root hairs of higher land plants and also perform similar functions.

As mosses do not contain any stem and roots for transporting water therefore they usually grow in moist conditions where water is plenty and dry very quickly when surface water is removed.  

Therefore rhizoids are the anchoring structures that mosses have instead of roots.