Algae - Intro | Plant Kingdom | Grade 11 | Biology | Khan Academy

They're not quite plants, not quite animals... algae are the weird rebels of the biological world! From microscopic phytoplankton to massive kelp forests, these ancient organisms have been quietly shaping our planet for billions of years. In this video, we're exploring the colorful, slimy, and surprisingly fascinating world of algae — the unsung heroes responsible for most of the oxygen you're breathing right now! Discover their diverse habitats, bizarre reproductive strategies, and the many ways they impact our daily lives. 00:00 - Introduction 00:32 - What does it mean to be an alga? 01:30 - Habitat 01:49 - Symbiotic associations 03:22 - Varieties of algae - Colour 04:01 - Varieties of algae - Size 04:29 - Varieties of algae - Structure 05:09 - Varieties of algae - Shape 05:38 - Reproduction in algae - Overview 06:12 - Vegetative reproduction 06:34 - Asexual Reproduction 07:03 - Sexual Reproduction 08:18 - Uses of Algae Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/science/i... 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 Vandhana Ashok