Answer:
Stem cells cut and repair their own DNA to promote formation of new tissues.
Explanation:
Stem cells cut itself and then repair their own DNA as a mechanism of activating genes that promote the development of new tissues. Stem cells are special type of cells that the ability to develop into many different types of cell such as muscle cells, brain cells etc. These cells are also capable to repair damaged tissues in the body.
The theory of evolution look it up and thats where you will get your anwser
the answer would be the third option: the cells change after being exposed to the chemical, and this change is passed to the next generation of cells.
It probably needs to dig in the ground for worms and grub. So it's an adaptation for finding food.
