A- on the sides you would find the phosphate and sugar so the center is the AT or CG
Answer:
Explanation:
Bones are organs composed of hard living tissue providing structural support to the body – it's scaffolding. It is a hard matrix of calcium salts deposited around protein fibers. Minerals make bone rigid and proteins (collagen) provide strength and elasticity. ... The outer layer of bone is called Cortical bone.
In evolutionary theory, adaptation is the biological mechanism by which organisms adjust to new environments
Most likely the Muscular System.
Muscles, ligament, tendons and bone all function to move the body. And organs inside the body depend on muscles as well; such as the heart, diaphragm, etc..
:) I hope this was one of your answers :) good luck!
