If an organism cells all contain the same DNA why does one cell become bone while another cell becomes lung tissue

very interesting question. it all has to do with DNA, which is a long strand of molecules. basically, only certain parts of the DNA, called genes, are used to in every cells. for instance, a bone cell will only use genes that allow it to build or break down bone

Explanation:

the correct answer is:

a population changes in response to a change in the environment.