In feeding relationships models like food chains and food webs, the arrow points towards

The arrow points from the organism being eaten to the organism that eats it.

Explanation:

answer; ///i believe the correct answer is (aids) acquired immune deficiency syndrome;

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy