Ascientist wants to determine the effect of a new type of gasoline. he fills one car with normal gasoline and another identical car with the new gasoline. which is the control group?

Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?

When a human or animal consumes food, the carbon in that food is most likely to be converted into which of the following elements? a. carbon remains carbon b. nitrogen c. oxygen d. hydrogen

Describe characteristics of a good respitory surface