3. Why do cells need to divide ?

Cells also divide so living things can grow. When organisms grow, it isn't because cells are getting larger. Organisms grow because cells are dividing to produce more and more cells.

Explanation:

Cells regulate their division by communicating with each other using chemical signals from special proteins called cyclins. These signals act like switches to tell cells when to start dividing and later when to stop dividing. It is important for cells to divide so you can grow and so your cuts heal. It is also important for cells to stop dividing at the right time. If a cell can not stop dividing when it is supposed to stop, this can lead to a disease called cancer.

I hope that this'll help you!

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.

i believe the answer is d.