Waxes create a waterproof layer on the outside of some living organisms. To which group of organic molecules do waxes belong

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

Individuals do not compete directly for resources, but are prey for the same predator

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