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YouTubeProfessor Dave Explains
Mechanisms of Plant Growth
We've gone over the various tiers of structure of a plant, from cells, to tissues, to organs and organ systems. Now it's time to better understand how plants grow. How to plants know when to grow? How do they know which direction to grow? All of this is regulated by plant hormones, which are signaling molecules, just like the ones that we have ...
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The scale of the devastation caused by the UPS plane crash in Louisville, Kentucky, was revealed on drone video released Nov. 7. At least 14 people, including the three pilots on board, were killed in the incident last week when the plane caught fire, lost an engine and crashed during takeoff near the city’s airport. The NTSB is investigating what happened. https://cbsn.ws/4nNT4nD | CBS News
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