When food becomes scarce, hundreds to thousands of independently living single-celled amoebas join to form a multicellular mass that will later reproduce.

Which level of the hierarchy of organization does this mass most
closely represent?

Organ system

Tissue

Organ

Molecule

The correct answer is - tissue.

Explanation:

In an unfavorable condition like scarcity of food, individual unicellular organism amoeba makes a formation a multicellular mass by aggregation of the cells that reproduce when conditions become favorable. These aggregation of cells known as slime molds.

These molds are more similar to the tissue structure in the hierarchy of organization of a multicellular organism. The tissue is the organization level that is similar to this mass as it is also formedby the cells joined together to perform a particular function.

format change of dna.