Which is true about all unicellular and multicellular organisms? They are made of one cell.
They reproduce.
They cause infections.
They are made of multiple cells.

They reproduce.

Explanation:

Reproduction is the phenomenon which involves the production of an offspring by particular individual or individuals to propagate their species. Reproduction is done during reproductive phase. Unicellular organisms are single-celled forms whereas multicellular organisms are made up of many cells.

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