What do the arrows in food chains/webs represent?

 Most generally speaking, the arrows in the food webs/chains represent the flow of energy.

Most typically, the energy will flow from the Sun to the plants, and then those plants are eaten and when they are eaten the energy flows from the plants to whatever animal ate them.

Iknow what you mean, like forgetting a person temporarily right? if so, you need a good distraction to take your mind off of the person and focus on wait patiently and they will come back : )

Nicotine. the answer is nichotine