Newborn kittens bump their heads deliberately into their mother's belly and then almost immediately start drinking the milk that is released. This bumping stimulation likely causes secretion of: a. estrogen.
b. parathyroid hormone.
c. luteinizing hormone.
d. ADH.
e. oxytocin.

Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.