What is the active site and what is it’s job

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

2polnis which of the following is an advantage of an in vitro experiment?me

According to cell theory; which structures carry out the basic function of living things? a. atoms b. organs c. cells b. nuclei