Answer all plz I will mark brainliest. LOTS OF POINTS!

According to the loco mass the mass of reactants and products

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?

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above