Sciencespeaking topic
Fish don't burst when they dive deep and birds don't freeze when they fly high, all because of pressure and temperature. So every living thing is really trapped inside an invisible 'livable band.' They don't spread freely; physics places them. Who draws the boundaries?
— ecological niche / physiological tolerance
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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