What is the most endangered shark species

Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline.which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

Which part of cellular respiration must occur before any of the other steps can occur