Question

cell theory is a set of three basic rules that define what makes something alive: 1. all living things are made of one or more cells. this includes a single - celled bacterium or a human made of trillions of cells. 2. cells come from other living cells. new cells don’t just appear out of nowhere. they are created when existing cells divide. 3. cells are the basic structures and functions of life. they do all the important jobs in a living thing, like carrying oxygen and fighting germs. what has the ability to create a new cell? a mineral, rotting food, an existing cell

Explanation:

The cell - theory states that new cells come from existing cells through cell division. Minerals are non - living, and rotting food is decaying organic matter that doesn't create new cells. Only an existing cell has the biological machinery to divide and create a new cell.

Answer:

An existing cell