Cells that move about in the mesohyl, digest particles, and may specialize for other functions are the

Answer;

-Archaeocytes

Cells that move about in the mesohyl, digest particles, and may specialize for other functions are the archaeocytes.

Explanation;

-Archaeocytes are very important to the functioning of a sponge. These cells are totipotent, which means that they can change into all of the other types of sponge cells.

-Archaeocytes ingest and digest food caught by the choanocyte collars and transport nutrients to the other cells of the sponge. In some sponges, archaeocytes develop into gametes.

well the answer is 2!