Matching Pairs Energy Flows Food Chains & Food Webs FlashcardsOnline version Energy Flows (Food Chains & Food Webs) Flashcards by Benjamin D Morgan 1 Why only 10% of energy is transferred to the next trophic level 2 Chemical Energy 3 Food Chain 4 Energy Pyramid 5 Controlled Variable 6 Trophic Levels 7 Producers/Autotrophs 8 Primary Consumer 9 Independent Variable 10 Solar Energy 11 Tertiary Consumer 12 Energy 13 10% 14 Food Web 15 Thermal Energy 16 Dependent Variable 17 Secondary Consumer 18 90% Different feeding positions in a food chain or web. The variable that is changed in an experiment. The cause. We can have only one of these in each experiment The amount of energy passed when one organism eats another in the next trophic level. Amount of energy lost to the environment as heat OR used by the organism to stay alive Eats producers to get energy and is in the second trophic level of the energy pyramid. The variable that is measured in an experiment. The effect in an experiment. We can have only one of these in an experiment Original source of energy for a food chain Eats herbivores to get energy and is in the third trophic level of the energy pyramid. Type/form of energy each organism in a food chain is AND the form of energy passes along from one organism to another. series of steps in an ecosystem in which organisms transfer energy AND transfer matter by eating and being eaten Energy is lost due to unusable heat and waste Food chains show a flow of ________ from the organism that is eaten to the organism that is eating it. A group of overlapping food chains connected together in an ecosystem (complex). The variable that is kept the same in an experiment so that the results are not thrown off. We need as many as possible of these Eats other carnivores to get energy and is in the fourth energy level of the trophic level. A possible start to the food chain and are in the first trophic level of an energy pyramid Type of energy lost to the environment in a food chain A good way to show how energy moves from one feeding level to another in a food chain.