Question

which organisms are made up of only one cell?
o a multicellular
b eukaryotic
c unicellular
d colonial

Explanation:

• Multicellular organisms have many cells.
• Eukaryotic refers to cells with a nucleus, not necessarily single - celled.
• Unicellular means made of one cell.
• Colonial organisms are groups of cells but not a single - celled entity in the sense of one cell performing all functions.

Answer:

C. Unicellular