Explain which way arrows point in a food chain and food web. explain why they point this way. tell what it shows

It depends on the food web and food chain. For example, a carrot points at the bunny, because the bunny eats it. Then the bunny points to a fox, because a fox eats bunnies.

Or, corn points to a mouse, because mice eat corn, and the mouse points to an owl because owls eat mice. The prey points to the predator.

i think it is dna, i'm not totally sure but i think it might be.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.