Antidiuretic hormone and oxytocin are neurohormones. b. The posterior pituitary originates from neural tissue, but the anterior pituitary has its origin elsewhere. c. More than one statement is correct. d. Neurons from the hypothalamus extend directly into the anterior pituitary. e. The hypothalamus and the posterior pituitary are connected by the portal blood vessels.

Which of the following statements is a scientific claim? a. the early solar system had large amounts of water; so, the oldest objects in the solar system should also be abundant in water. b. earth is shaped like a sphere even if not all of the scientific observations related to its shape support this idea. c. the mass of the universe is much greater than current models predict; it is not possible to explain this inconsistency. d. planet earth is abundant in water, but there is no way to scientifically determine from where earth's water originated.