Select all the correct answers. a mother has blood type a and her son has blood type o. which blood types are possible for the father? b ab a o

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures

Which structure in the cardiovascular system connect arteries to veins?