Question

what is a combination of cells​

Answer 1

A combination of cells form a tissues.

tissues form organ.

organ form organ system.

and organ systems form a organisms

Answer 2

Answer:

The combination of cells in which the negative terminal of a first cell is connected with the positive terminal of second cell and the negative terminal of a second cell is connected to the positive terminal of a third cell and so on is known as series combination of cells.