Food Chains & Food Webs and Energy Pyramids

What is the difference between a food chain and food web? Food webs only follow just one path as animals find food A food chain shows the many different paths that energy flows through many plants and animals. A food chain only follows just one path as animals find food A food web shows the many different paths that energy flows through many plants and animals. A food chain consists of many food webs. A food chain only follows just one path as animals find food. Identify the choices below as either a producer (which produces its own food) or a consumer (which takes in other organisms for energy). Producer Moss Trees Grass Flowers Water Lilly Vegetables Consumer Dog Hawk Cow Fish Grasshopper Rabbit Food Web Draw arrows to connect the food web and show the flow of energy through the ecosystem. Match Match the parts of the food chain. Producer Grass Primary Consumer Grasshopper Secondary Consumer Mouse Tertiary Consumer Snake Quaternary Consumer Hawk The flow of energy through a food energy. Only 10% of the energy is passed on and the rest is lost as heat; To calculate the amount of energy passed on just to the next organisms, just divide by 10. Pond Food Chain Energy Flow Click on each organism from the pond food chain and label it with the amount of energy it has. The rule is, is that it only passes on 10%. So divide by 10! The plant will start at 100,000 units of energy do the math to figure out the rest. 100,000 10,000 1,000 100 10 1 Answer the following questions using the pyramid below. Which trophic level has the most energy? 1st trophic level (producers) 2nd trophic level (primary consumers) 3rd trophic level (secondary consumers) all levels have the same amount of energy What happens to the amount of energy available to organisms when moving from trophic level 1 to trophic level 2? the energy increases by 90% the energy decreases by 10% the energy decreases by 90% the energy increases by 10% What happens to 90% of the energy in an energy pyramid?