Sciencespeaking topic
In the ocean, when plankton is scarce there are few fish; when plankton booms the fish multiply; when the fish multiply the plankton runs out and the cycle starts over. Why does this oscillation never stop, when no one is hitting the brakes?
— predator-prey cycle / Lotka-Volterra
practice with this topic
Set the timer (5-30 min), take 20 seconds of prep if you like, start talking. Jot your thoughts onto the sticky-note board.
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