The concentration of sodium on the inside of the cell is 20 mm. The outside of the cell has a sodium concentration of 115 mm. Which mechanism of ion uptake would best move sodium from the inside of the cell to the outside?.

The volume of a cylinder is 72 tt cm3. if the radius is 3 cm, what is the height of the cylinder?

Two technicians are discussing how to test a car's exhaust by holding a small piece of paper within an inch of the tailpipe mouth. technician a says that if the paper is vibrating due to a "puffing" output from the tailpipe, this signals a smoothly running engine. technician b says that if the paper is being drawn toward the tailpipe, this could indicate burned exhaust valves. who is correct? a. technician b b. both technicians a and b c. technician a d. neither technicians a or b

What is a financial award that is based on academic or extracurricular merit? -loan -scholarship -work study -federal grant