feeding relationships

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Feeding Relationshi ps How energy gets transferred

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PowerPoint describing food chains and food webs

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  • 1. Feeding Relationships How energy gets transferred

2. Feeding Relationships Organisms within an ecosystem are interconnected by theirfeeding relationships. 3. Producers Some organisms, known as autotrophs, create their own food through photosynthesis. They get energy from the sun and nutrients from their surroundings (soil, water, etc.) that they in turn pass on to the organisms that eat them. 4. Examples:PlantsAlgaePhotosynthetic Bacteria 5. Consumers Some organisms, known as heterotrophs, get their food by eating other organisms. Sunlight energy is passed through the food chain when a producer is eaten. There are different levels: Primary consumers, secondary consumers, etc 6. Examples:Mouse EagleFox 7. Ultimately Photosynthesis makes energy within the ecosystem 8. Food chains illustrate simplified feeding relationships among organisms. 100 KJproducerPrimary Consumer10 KJSecondary Consumer1 KJTertiary ConsumerDue to heat and other metabolic losses, energy decreases by 90% at eachtrophic level. 9. This is why there are far more producers than consumers. 10. We can categorize animals by what they eat as well. Carnivores eat meat onlyOmnivores eat both meat and plantsHerbivores eat plants only 11. Draw the path of sunlight and label according to the notes 12. Autotroph1st level consumer 13. Decomposers help release nutrients and gain energy from waste or dead autotrophs and heterotrophs.They recycle vital nutrientsCarbon Nitrogen Phosphorus 14. Food webs demonstrate a more realistic representation of how feeding relationships connect organisms in an ecosystem. 15. Label the food web with the following: Producers, Carnivores, Omnivores, and Herbivores