Define Osmosis and Diffusion AND explain the difference between the two. please need help

What is the relation ship between structure and function in an organism

What causes eclipses? check all that apply. earth's rotation on its axis moon's shadow covering the sun earth's shadow covering the moon earth's orbit and moon's orbit occasionally aligning the moon and sun's gravity pulling in the same direction

Pulmonary arteries carry highly oxygenated blood. true or false?