What are 3 reasons why we need mitosis?

As a small change in a person's dna can cause a genetic disorder

What is the problem in this article? what solution does the article propose?

Select the correct answer. which statement applies only to the axial skeleton, not the appendicular skeleton? a. it contains a pivot joint. b. it has muscles attached that work in pairs. c. it contains red bone marrow. d. it possesses fossa for bone articulation. e. it protects the heart and lungs.