Which structures are haploid? select all that apply?

Prior to the development of dna fingerprinting, blood type could be used to determine possible parentage. although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent. which of the following is a true statement that can be made about parentage based on blood typing?

Are the earth's ocean floor and continents the same age geologically? why or why not?

Match with o for organic and i for inorganic for each compound