Question

question: how do rhizoids help mosses? answer options: select one of four by providing food by providing nitrogen by keeping the mosses grounded by keeping the mosses dry

Explanation:

Rhizoids in mosses are hair - like structures. They do not provide food (mosses make food via photosynthesis), nor do they provide nitrogen or keep mosses dry. Their main function is to anchor the moss to the substrate, i.e., keep the mosses grounded.

Answer:

By keeping the mosses grounded