In communities that have cycling populations of predator and prey, there is a lag time between the prey population increase and the predator population increase. why?

something in the animal food chain must have grown

Explanation:

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passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input. unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy.

so, according to what that says, i believe it's hypertonic and hypotonic.

good luck!