Energy Flow in Ecosystems Name: ________________________________Block: ________ 1. Use the table to the right to draw a 4-member food chain. Food Label the producer and levels of consumers. Organism Source cat mice, birds Wheat (producer) Worm (primary consumer) Robin (secondary consumer) Cat (tertiary consumer) shrew worms 2. Use all of the organisms in the table to draw a food web. Label the producer and levels of consumers. robin worms, seeds wheat photosynthesis mouse wheat seeds 3. Use the organisms in your food web to fill in the energy pyramid. badger shrews 4. Which level of the pyramid has the most rose photosynthesis energy available? plant Wheat 6. Which organism in the food web is a decomposer? Why are 5. Where do the organisms in the bottom decomposers important? layer of the pyramid get their energy? The Sun worm rotting leaves The worm they return nutrients for producers to use – 7. Which organism in the food web to the left is sometimes a first-level consumer and sometimes a second-level consumer? EXPLAIN. The mouse it will eat both grass and grasshoppers – 8. Choose one food chain in the web. Name all the organisms in that chain. Start with the producer and end with the consumer. GrassGrasshopperMouseCoyote 9. Draw an energy pyramid for the food you chose. 10. What happens to the amount of energy as it moves up each level of the pyramid? BE SPECIFIC. The energy is lost 90%. Lost to metabolism/respiration. Only 10% moves up the food pyramid. –
Energy Flow in Ecosystems Name: ________________________________Block: ________ 1. Use the table to the right to draw a 4-member food chain. Label the producer and levels of consumers. Wheat (producer) Worm (primary consumer) Robin (secondary consumer) Cat (tertiary consumer) 2. Use all of the organisms in the table to draw a food web. Label the producer and levels of consumers. Food Organism Source cat mice, birds shrew worms robin worms, seeds wheat photosynthesis 3. Use the organisms in your food web to fill in the energy pyramid. mouse wheat seeds badger shrews 4. Which level of the pyramid has the most energy available? Wheat rose plant photosynthesis 5. Where do the organisms in the bottom layer of the pyramid get their energy? The Sun 6. Which organism in the food web is a decomposer? Why are decomposers important? worm rotting leaves The worm – they return nutrients for producers to use 7. Which organism in the food web to the left is sometimes a first-level consumer and sometimes a second-level consumer? EXPLAIN. The mouse – it will eat both grass and grasshoppers 8. Choose one food chain in the web. Name all the organisms in that chain. Start with the producer and end with the consumer. GrassGrasshopperMouseCoyote 9. Draw an energy pyramid for the food you chose. 10. What happens to the amount of energy as it moves up each level of the pyramid? BE SPECIFIC. The energy is lost – 90%. Lost to metabolism/respiration. Only 10% moves up the food pyramid.