https://www.khanacademy.org/science/bmc-grade-9-science/x345505a97fc4a662:useful-and-harmful-microorganisms/x345505a97fc4a662:harmful-microbes/v/harmful-microbes 2025-10-01T04:00:43.064865848Z Harmful Microbes Harmful microbes have been shaping human life for centuries—from food spoilage in our kitchens to deadly pandemics across the globe. In this video, you'll learn: 1. Which fungi spoil food and release dangerous mycotoxins? 2. How bacteria like Clostridium contaminate canned foods? 3. Diseases caused by harmful microbes: pneumonia, typhoid, cholera, dengue, malaria, ringworm & more 4. Microbial infections in plants and animals (anthrax, tobacco mosaic disease) Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Harmful Microbes Harmful microbes have been shaping human life for centuries—from food spoilage in our kitchens to deadly pandemics across the globe. In this video, you'll learn: 1. Which fungi spoil food and release dangerous mycotoxins? 2. How bacteria like Clostridium contaminate canned foods? 3. Diseases caused by harmful microbes: pneumonia, typhoid, cholera, dengue, malaria, ringworm & more 4. Microbial infections in plants and animals (anthrax, tobacco mosaic disease) https://cdn.kastatic.org/ka-youtube-converted/aPM2BcAEguE.mp4/aPM2BcAEguE.mp4 402 Harmful microbes https://www.khanacademy.org/science/bmc-grade-9-science/x345505a97fc4a662:useful-and-harmful-microorganisms/x345505a97fc4a662:harmful-microbes/e/harmful-microbes 2026-04-07T23:55:07.30621384Z Harmful microbes This exercise explores how microorganisms like fungi and Clostridium bacteria affect our daily lives—from spoiling food and damaging leather to causing food poisoning at feasts. Bitasta Datta exercise