Air food and oxygen is a

20. in humans, freckles are dominant to no freckles. trey has no freckles and his wife anna grace has freckles, but her dad doesn't. they want to know what percentage of their kids would look like trey. show a punnett square to support your answer.

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

How do all types of diffusion/passive transport actually ‘work’ without using even the smallest amount of cellular energy?