For diffusion to occur, which condition must be met?

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

What are simmilarities and differences between anaerobic respiration in animal and yeast cells? would prefer to get simmilarities as i already got some differences. you!

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?