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2. Khan Academy

   www.khanacademy.org/.../trophic-levels/a/food-chains-and-food-webs-article

   If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

3. Example identifying roles in a food web - Khan Academy

   www.khanacademy.org/.../trophic-levels/v/example-identifying-roles-in-a-food-web

   Grasses, as primary producers, harness sunlight into usable energy. Primary consumers like mice and grasshoppers eat the grass, gaining energy. Secondary consumers, such as hawks, coyotes, vultures, and snakes, eat these primary consumers, continuing the energy transfer. Created by Sal Khan.

4. Khan Academy

   www.khanacademy.org/.../a/food-chains-and-food-webs-article

   Learn about food chains and food webs on Khan Academy.

5. What is ecology? - Khan Academy

   www.khanacademy.org/science/biology/ecology/intro-to-ecology/a/what-is-ecology

   One core goal of ecology is to understand the distribution and abundance of living things in the physical environment. For instance, your backyard or neighborhood park probably has a very different set of plants, animals, and fungi than the backyard of a fellow Khan Academy learner on the opposite side of the globe.

6. Oxidative phosphorylation - Khan Academy

   www.khanacademy.org/science/ap-biology/cellular-energetics/cellular...

   Overview of oxidative phosphorylation. The electron transport chain forms a proton gradient across the inner mitochondrial membrane, which drives the synthesis of ATP via chemiosmosis.

7. 可汗学院 - Khan Academy

   zh.khanacademy.org/science/biology/ecology/intro-to-ecosystems/a/food-chains...

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8. Khan Academy

   pt.khanacademy.org/science/biology/ecology/intro-to-ecosystems/e/food-chains...

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9. Khan Academy

   uz.khanacademy.org/science/biology/ecology/intro-to-ecosystems/a/food-chains...

   Khan Academy

10. Khan Academy

    es.khanacademy.org/.../energy-flow-through-ecosystems/a/food-chains-food-webs

    Something went wrong. Please try again. | Khan Academy. Si estás viendo este mensaje, significa que estamos teniendo problemas para cargar materiales externos en nuestro sitio. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked. Explorar. Buscar. Haz una donación Inicia sesión ...

11. Cadenas alimenticias y redes tróficas (práctica) - Khan Academy

    es.khanacademy.org/.../e/food-chains-and-food-webs

    Cadenas alimenticias y redes tróficas. A continuación se representa una cadena trófica. ¿En cuál de los siguientes pares corresponde correctamente el organismo con su papel en la cadena trófica? Aprende gratuitamente sobre matemáticas, arte, programación, economía, física, química, biología, medicina, finanzas, historia y más. Khan ...