Probability there are four basic blood groups: o, a, b, and ab. ordinarily, anyone can receive the blood of a donor from their own group. also, anyone can receive the blood of a donor from the o group, and any of these four types can be used by a recipient from the ab group. all of the other possibilities are undesirable. an experiment consists of drawing a pint of blood and determining its type for each of the next two donors who enter a blood bank.

prokaryotic cells do not have a nucleus in which the dna is stored in, it floats freely inside the cell.

eukaryote cells do have a nucleus in which the dna is stored in.

type 2 happens when excess consumption of high-sugar foods flood the blood supply with glucose and reduce the production and effectiveness of insulin. if a person has prediabetes, they can reduce the risk of full diabetes through regular exercise and a balanced, low-sugar diet.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.