How do bones heal after a certain period of time. I'm giving away points​

Explanation: Well, In the first few days after a fracture/breakage in the bone, the body forms a blood clot around the broken bone to protect it and deliver the cells needed for healing. Then, an area of healing tissue forms around the broken bone. This is called a callus, (It joins the broken bones together)

it supports cell theory.it states that all living cells are made from cells

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.