Calcitonin injection.
Calcitonin is a natural hormone that comes from the thyroid, and slows osteoclasts rate of absorption of bone.
The large intestine<span>, </span>also known as the large bowel<span> or colon.</span>
an organ system is a group of organs that work together for a common function. the order goes cells, tissues, organs, organ systems, organism.
Different genes control the development of different characteristics of an organism.
