Answer:
The name of hormone that lowers the calcium concentration in blood is called Parathyroid A.
Explanation:
I don't know dinosaur I'm sorry
C.Stimulation of thoracic or lumbar spinal regions,chain ganglion,acetylcholine release
No it supports it by showing homologous structural traits
<span>The nitrogen cycle could not exist without first nitrogen. The cycle is about this specific element which goes to show that if this element is not present then, there will not be any nitrogen cycle. Also, an important factor for the cycle is the presence of the bacteria and other microorganism which are needed for the fixation. </span>
