Which phrase is the **best** definition of *diffusion*? the transport of particles up a concentration gradient the movement of particles from a region of high concentration the movement through a cell membrane using atp the movement of particles from a region of low concentration to a region of high concentration

The movement of particles from a region of high concentration

Explanation:

Diffusion is driven by Brownian motion of molecules of a fluid. The kinetic energy of the molecules causes them to collide randomly. Most of these collisions are inelastic. In a highly concentrated region, the molecules collide at a higher frequency hence there will be some form of pressure exerted by these colliding molecules to the boundaries of the system. If its an open system and there is a region of lower concentration, these molecules will disperse to these regions until they are evenly distributed. The ‘system’ will have transformed into a lower energy state following the law of entropy of molecular disorder.

starchy vegetables are high in carbohydrates.

starchy vegetables contain more carbohydrates than non-starchy vegetables.

explanation:

there are two primary categories of carbohydrates, essentially differentiated on the basis of their carbohydrate content (which is in the form of starch - a complex carbohydrate):

those vegetables which contain little amounts of starch are termed as non-starchy vegetables, and some examples include: artichokes, broccoli and bean sprouts.

vegetables high in their starch content are distinguished as starchy vegetables, and some examples include: potatoes, chickpeas and corn.

blue stars have the highest surface temp

stellar distances are usually expressed in light-years

the measure of a star's brightness is called magnitude

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