Sex-linked, recessive traits inculding hemophilia and colorblindness are common in males. which statement explains this phenomenon? a. males have two x chromosomes. b. most of the genes on the x and y chromosomes of males are recessive. c. in males, the recessive sex-linked genes appear only on the y chromosome. d. males have only one x chromosome, and if affected, the recessive trait will appear

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.