The subatomic particle that has the least masses the?

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 doorways into and out of cells, attached to the membrane, and built in the rough er.

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi