Check out my other channel TopTenz! https://www.youtube.com/user/toptenznet →→’t just a popular metaphor, it’s actually true. One bad apple will absolutely quickly spoil an entire box of apples. The obvious way this can happen is simply if one of the apples is infested with some fungi or critters that reproduce and spread throughout all the apples in a box, ruining them as they go. Want the text version?: http://www.todayifoundout.com/index.php/2014/03/one-bad-apple-spoils-bunch/ Sources: http://www.plant-hormones.info/ethylene.htm http://scienceline.ucsb.edu/getkey.php?key=64 http://chemistry.about.com/b/2005/01/25/why-do-cut-apples-turn-brown.htm http://en.wikipedia.org/wiki/Ethylene http://postharvest.tfrec.wsu.edu/pages/PC2000F http://www.todayifoundout.com/index.php/2012/08/why-do-bananas-go-bad-faster-in-the-refridgerator/ Image Credit: https://www.bigstockphoto.com/ru/image-171210983/stock-photo-stale-apple-crop-because-of-poor-storage-conditions-bad-apples-with-brown-sideways-in-a-drawer-top-view-copy-space-conceptual-photo https://www.bigstockphoto.com/ru/image-221486110/stock-photo-rotten-disgusting-apple%2C-many-apple https://www.bigstockphoto.com/ru/image-189227914/stock-photo-3d-rendering-of-rotten-apple-in-the-middle-of-red-apples-in-low-key-way https://www.bigstockphoto.com/ru/image-166992866/stock-photo-a-lot-of-rotten-%28spoiled%29-apples%2C-lying-on-the-ground-among-them-are-some-ripe-fresh-apples https://www.bigstockphoto.com/ru/image-148471199/stock-photo-picture-of-rotten-apples-in-a-garden https://www.bigstockphoto.com/ru/image-216686434/stock-photo-green-bananas-hanging-on-banana-tree-green-bananas-hanging-on-banana-tree https://www.bigstockphoto.com/ru/image-165198380/stock-photo-bananas-basket-on-sale-in-food-shop https://www.bigstockphoto.com/ru/image-231684655/stock-photo-a-bunch-of-ripe-bananas-in-the-supermarket%2C-very-ripe-bananas https://www.bigstockphoto.com/ru/image-222019540/stock-photo-over-ripe-bana