Past and future continental

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?

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous