True, how would the selection be made without diversity or variety it’s obviously true
Answer: Option A) Parathyroid glands
Explanation:
The Parathyroid gland located in the neck region helps in the secretion of an hormone called Parathormone.
This hormone helps to raise the levels of calcium ions in the body, by preventing the loss of calcium ions through urine, and also preventing excess deposit of calcium ions in the bone, thus regulating bone density.
Vary in the number of neutrons but Sama in the number if protons are called isotopes
Answer:
every answer of yours is correct
That would be Dinitrogen sulfide i believe :)
Hope this helps :)