Hormones that help regulate blood calcium levels are produced by the? by Sunday | Sep 5 | Biology JAMB | 0 comments A. Adrenal B. thyroid C. pancreas D. parathyroid Correct Answer: Option D – parathyroid Users Also Read These:A mixture of calcium chloride and calcium…An individual with blood group AB can receive blood…What is the probability? of a man of blood group AB…A man with blood group A (TAP) married a woman with…A person with blood group B can only donate blood to…