Mutation is random because there is really no way of knowing whether a child will inherit it, whereas natural selection is predisposed in either parent.
Answer:
Cervical and Thoracic areas.
Explanation:
The most common sites of injury are the cervical and thoracic areas. SCI is a common cause of permanent disability and death in children and adults. The spine has 33 vertebrae.
UV rays reacting with the O2 molecules
I might be wrong a little but
Hope the helps :)
The study of chemical reactions would be in chemistry and not biology so thats the answer
