Robert Hooke discovered cells using a microscope and found that cells are the basic unit of structure and function in living things. Cells can either be unicellular, consisting of a single cell, or multicellular, consisting of many cells.

1. CELLS

2. Who discovered the
cells?
Robert Hooke discovered the cells.

3. What can you use to
see a cell?
I can see cells with a microscope.

4. What are cells?
A cell is the basic unit of structure
and function in living things.

5. What are unicellular
organisms?
Unicellular are organisms made up of
one cell.

6. What are multicellular
organisms?
Unicellular are organisms made up of
many cells.