Question

the cellular theory of aging most focuses on? select one a. deterioration of cells over a lifetime. b. the number of chromosomes in a cell. c. the size of cells. d. the sudden death of cells in one system.

Explanation:

The cellular theory of aging posits that aging is a result of the gradual deterioration of cells over time due to factors like oxidative stress, DNA damage, and telomere shortening. It focuses on the long - term changes in cells throughout an organism's lifetime.

Answer:

A. deterioration of cells over a lifetime