Answer: Option 'C' is correct.
Explanation:
Every cells change with ageing.
As cell age they tend to become larger and as the body ages it tends to have fewer cell dividing.
As the age of cells increases, cells become less able to divide and multiply.
Due to which when an middle aged or old aged person get wounded, their healing takes so much of time as compare to child because new cells do not develop easily in old age people. It takes time to develop new cell to heal their wound.
Hence, option 'C' is correct.
Answer:
option D, smaller; fewer cells dividing
Explanation:
With aging a cell's performance slows down and after a certain period of time it dies. In this way several cell die in an aging person , thereby making an organ less functional.
The number of living and functional cells in testes, ovaries, liver, and kidneys decreases markedly with aging.
As a cell dies, it shrinks and reduces in size thereby expelling liquid out of it.
Also the rate of formation of new cells reduces with progressing age.
Therefore, as a person becomes old the cell reduces their size and hence die. Also the cell division process becomes slow
Option D is correct
