Which of the following hormones was discovered by James Bertram Collip?

Which of the following hormones is hypercalcemic?

Exchange of calcium between bone and extracellular fluid takes place under the influence of certain hormones.
$(a)$ What will happen if there is an excess of $Ca^{++}$ in the extracellular fluid?
$(b)$ What will happen if there is a very low amount of $Ca^{++}$ in the extracellular fluid?

What is the result of a deficiency of parathormone $(PTH)$?

Removal of the parathyroid gland in humans leads to .....

The blood calcium level is lowered by the deficiency of