Feeding in Birds and Cows | Life Processes in Animals | Grade 7 | Science | Khan Academy скачать в хорошем качестве

Feeding in Birds and Cows | Life Processes in Animals | Grade 7 | Science | Khan Academy

Ever wondered why cows seem to chew all day long? 🐄 Or how birds manage to eat without having any teeth? 🐦 In this video, we’ll explore the fascinating ways cows and birds feed and digest their food. From cows with their four-chambered stomachs and billions of microbial partners to birds with their amazing gizzards that work like built-in grinders—nature has come up with some truly clever tricks! What you’ll learn in this video: 1. Why cows chew, swallow, and then chew again (rumination)? 2. The role of the rumen and microbes in digesting tough cellulose? 3. Why humans can’t digest cellulose (and how fibre helps us instead!)? 4. How birds digest food without teeth? 5. The secret of the proventriculus and gizzard (and why birds swallow tiny stones!) By the end of this video, you’ll see how different animals have evolved unique ways to handle their meals—and why digestion is all about teamwork between body parts, food, and even microbes. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! (https://www.khanacademy.org/science/n...) Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Bitasta Datta