How is e. coli like a paramecium?
a. both are unicellular
b. both have a contractile vacuole
c. both have a nucleoid
d. both produce essential vitamins.

which statement is one of the three parts of cell theory?

a. cells make up tissues, tissues make up organs, organs make up systems, systems make up organisms.

b. there are three types of cells, prokaryotic, eukaryotic plant, and eukaryotic animal.

c. the smallest living things are single cells, and cells are the functional units of multicellular ogranisms.

d. cell organelles can be membrane-bound or not membrane bound.

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