(ADH) is key to the reabsorption of water for the kidneys, when (ADH) is present collecting duct is permeable to water.
Answer:
C.haploid
Explanation:
as the egg and the sperm carry half the number of chromosomes,just to differentiate the genetic material in two cells we call the egg and sperm as haploid and the fertilized cell as diploid, so the two can be easily differentiated.
Helping regulate levels of calcium and phosphate in the blood, opposing the action of parathyroid hormone. (sorry if I didn't help ;-;)
Sexual reproduction is associated with Meiosis. In this form of cell division, the number of chromosomes in the parent cells are reduced by half. The cells after division are called haploids. This mechanism is needed to make egg and sperm cells for sexual reproduction.