https://www.khanacademy.org/science/biology/ecology/intro-to-ecology/v/ecology-introduction 2024-01-22T05:31:37.90910307Z Ecology introduction Ecology studies how life interacts with other life and their environment, focusing on both living (biotic) and non-living (abiotic) factors. It explores different scales, from individual organisms to populations, communities, ecosystems, and the biosphere. Each level offers unique insights into the complex, often balanced systems that form our world. Ecology also considers potential biospheres beyond Earth. Sal Khan video https://cdn.kastatic.org/googleusercontent/O4k8YUHqHveXQCpe_S5aKD6CJVBtEqIC7-5wGkOGArzdfopMoLqzjoPvhAHZNQ-JWdJj32BbUmqA8rJFjfcv_AxLEw Ecology introduction Ecology studies how life interacts with other life and their environment, focusing on both living (biotic) and non-living (abiotic) factors. It explores different scales, from individual organisms to populations, communities, ecosystems, and the biosphere. Each level offers unique insights into the complex, often balanced systems that form our world. Ecology also considers potential biospheres beyond Earth. https://cdn.kastatic.org/ka-youtube-converted/OfV3VNgjpvw.mp4/OfV3VNgjpvw.mp4 589 What living things need https://www.khanacademy.org/science/ap-biology/ecology-ap/community-ecology/v/interactions-between-populations 2023-06-22T09:47:49.118446933Z Interactions between populations Interspecific interactions are the relationships and interactions between different species living together in a shared habitat, such as competition, predation, and symbiosis. Competition involves species vying for resources, while predation entails one species consuming another. Symbiosis involves long-term relationships, including parasitism (one benefits, the other suffers), mutualism (both benefit), and commensalism (one benefits, the other remains unaffected). Sal Khan video https://cdn.kastatic.org/googleusercontent/2mCCAp7Jx1ZPqKqm5ssWgoeUgsEr5zmSQZYailf2GciqZsXe23PAbDt7VeaD81CIipqXA52lb_tqiwgAmgXtpvc Interactions between populations Interspecific interactions are the relationships and interactions between different species living together in a shared habitat, such as competition, predation, and symbiosis. Competition involves species vying for resources, while predation entails one species consuming another. Symbiosis involves long-term relationships, including parasitism (one benefits, the other suffers), mutualism (both benefit), and commensalism (one benefits, the other remains unaffected). https://cdn.kastatic.org/ka-youtube-converted/q2zdiLn3gSE.mp4/q2zdiLn3gSE.mp4 492 What living things need https://www.khanacademy.org/science/middle-school-earth-and-space-science/x87d03b443efbea0a:earth-and-society/x87d03b443efbea0a:human-impacts-on-the-environment/v/human-impacts-on-the-environment 2025-05-07T17:11:10.976262835Z Human impacts on the environment Human activities—such as land use, water use, and deforestation—often have negative impacts on the environment. These impacts worsen as the human population grows and consumes more resources. Science can help identify ways to reduce our impacts, but it is ultimately up to us to take action. Khan Academy video https://cdn.kastatic.org/ka_thumbnails_cache/5d88359d-4b8d-407f-86f3-06c1792814a4_1280_720_base.png Human impacts on the environment Human activities—such as land use, water use, and deforestation—often have negative impacts on the environment. These impacts worsen as the human population grows and consumes more resources. Science can help identify ways to reduce our impacts, but it is ultimately up to us to take action. https://cdn.kastatic.org/ka-youtube-converted/ThpzFgoGrKE.mp4/ThpzFgoGrKE.mp4 308 What living things need https://www.khanacademy.org/science/middle-school-earth-and-space-science/x87d03b443efbea0a:earth-and-society/x87d03b443efbea0a:human-impacts-on-the-environment/a/human-impacts-on-the-environment 2026-04-29T10:50:35.589391704Z Key points: Human impacts on the environment Learn about how human activities can affect the environment. article https://www.khanacademy.org/science/bmc-grade-6-science/x7a469b41c6296505:diversity/x7a469b41c6296505:preserving-life-s-balance/e/human-impacts-on-plants-and-animals 2026-06-15T04:30:38.969568377Z Human impacts on plants and animals Let's do some questions vibhor exercise