Do you know anything in biology which i can make into a graph?

Question

as much as possible, the variables should be in direct proportion. though variables in inverse proportion is also okay. :)

Answer 1

The description of the animal and plant cell...State the differences...Hope this is correct:)

Answer 2

Heart beats , pulses of living things , rate of flow of water through a  plant, the speede of reactions in our body, speed or frequency of several processes in our body . NICE QUESTION>