4.6 million years ago the solar system was a cloud of dust and gas known as a solar nebula, other material that was most likely present was calcium and iron.
That site is known as "ACTIVE SITE".
<span>When a bone breaks your body immediately begins working to heal it. Within the first hours of a fracture a blood clot forms around the break and special cells call phagocytes begin cleaning germs from the bone fragments. Then, a soft callus composed of collagen is created around the break. Next, a hard callus forms as osteoblast cells work to create new bone to aid in the reconstruction process. After all is said and done the bone is remodeled by cells called osteoclasts. The bone will be completely rebuilt in 3-9 years.</span>
kEnTuCkY FrIeD cHicKeN wItH a GiFt cArD tO jOnEs BaRbEqUe AnD fOoT mAsSaGe
The answer to your question would have to be C