Calcitonin injection.
Calcitonin is a natural hormone that comes from the thyroid, and slows osteoclasts rate of absorption of bone.
The answer is B. Symbiosis. Symbiosis is the relationship least commonly found in nature. Hope it helped you, and have a great day.
-Charlie
The answer is c .. (that the bottom)
Answer:
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium. The pulmonary vein empties oxygen-rich blood, from the lungs into the left atrium.
Explanation:
hope this helps...
and if u didn't get it its veins...
True, they have collected data from people with and without the flu virus