Question

Do bigger organisms have bigger cells what kind of test could you do to answer this

Answer 1

No, bigger organisms have more cells.

Answer 2

Bigger organisms have more cells. Unless it's fat cells (fats)
If cells were bigger, you wouldnt need to see the cells under the microscope. Eg: on a plant, you cants see the stomata on the bottom of the leaf because the cell is too small. Thres the answer: bigger organisms dont have bigger cells