Answer:
Because it is inevitable and no one truly knows what to expect from it.
Answer:
Although you might have heard people talk about a gene for red hair, green eyes or other characteristics, it's important to remember that genes code for proteins, not traits. While your genetic makeup does indeed determine physical traits like eye color, hair color and so forth, your genes affect these traits indirectly by way of the proteins created via DNA.
Hopefully, this answer helped! :D
All the changes (or improvement) that take place during the life of an organism is known as <span>"Development"</span>
