Question

practice ii
what are the two forces that drive net filtration?
electric and magnetic forces
hydrostatic and osmotic imbalances
static and dynamic pressures
hydrostatic and osmotic pressures
gravity and friction

Explanation:

Net filtration in the context of fluid movement across membranes (such as in the kidneys) is driven by hydrostatic pressure (the pressure exerted by a fluid due to its weight, like blood pressure in capillaries) and osmotic pressure (the pressure needed to stop osmosis, related to solute concentration gradients). Hydrostatic pressure pushes fluid out, and osmotic pressure can pull fluid in (depending on the direction of the gradient). Electric and magnetic forces are not relevant here. "Hydrostatic and osmotic imbalances" is an incorrect phrasing as it's the pressures that matter. Static and dynamic pressures are concepts more in fluid mechanics in general (not specific to net filtration in biological systems like this context). Gravity and friction are not the main forces driving net filtration in the relevant physiological processes.

Answer:

Hydrostatic and osmotic pressures