Please help me with this

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?

The buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird