Do bigger organisms have bigger cells? What kind of test can I do to answer the question

No most cells are around the same size. This is because the larger the cell the less efficient it would be at distributing nutrience and getting rid of waist. The only way i see to test this would be to compare the size of cells of two organisms of different size

Answer;

No.

Larger and bigger animals do not have bigger cells.

Despite the fact that cells vary in size, they are mostly close to the same size.

Bigger animals or larger animals do not have bigger cells, but they have a lot more of the cells compared to small animals.

To test for this one may use a microscope to observe the cells from a larger animal and those from a small organisms.