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- Many people who want to reduce their ecological footprinthave focused on how much energy is expended (and howmany climate-warming greenhouse gases are emitted) intransporting food from its place of production to its place ofsale. The typical grocery store item is shipped by truck, air,and/or sea for many hundreds of miles before reaching theshelves, and this transport consumes oil. This concern over“food-miles” has helped drive the “locavore” movement tobuy and eat locally sourced food.However, food’s transport from producer to retailer, asmeasured by food-miles, is just one source of carbon emissionsin the overall process of producing and delivering food. In2008, environmental scientists Christopher Weber and H. ScottMathews conducted a thorough life-cycle analysis (p. 400) ofU.S. food production and delivery. By filling in the table below,you will get a better idea of how our dietary choices contribute toclimate change. After measuring mass, energy content, and dollar valuefor each…Generally, energy ________________an ecosystem and nutrients____________an ecosystem.a. cycles within; cycle withinb. cycles within; fl ow throughc. fl ows through; cycle withind. fl ows through; fl ow through. This form of a food web begins with waste materials and theremains of dead organisms.a. aquaticb. detritalc. grazingd. atmospherice. geological
- The sun si the main source of energy for the earth. What forms of energy does the sun provide to the eartWhich trophic level(s) must be present to sustain any ecosystem?a. producers onlyb. producers and consumersc. producers, detritivores, and decomposersd. producers, consumers, detritivores, and decomposersFood Web Color Code… Producer (Green) ____________________ Primary Consumer ( Yellow) _____________ __________________________________ Secondary Consumer (Blue) _____________ __________________________________ Tertiary Consumer (Red) _______________ Decomposer (Orange) _________________ __________________________________ Describe the movement of energy through the web___________________________ Type Eats … Examples Herbivore Carnivore Omnivore Food Web is a bunch of overlapping _________ ________. The primary source of all energy comes from the ______. What would happen if an organism became extinct? _____________________________________________
- Use the information show below to draw a food web. The organisms shown in bold must be included. a picture of the food web you drew. Phytoplankton do photosynthesisZooplankton eat phytoplanktonMinnows eat phytoplankton, zooplankton, and insectsLargemouth bass eat sunfish and minnowsSunfish eat minnows and insectsOsprey eat largemouth bass and sunfishInsects eat phytoplankton and zooplanktonSnapping turtles eat minnows and sunfish.An organism exists for long periods by using only CO2 and H2O. herbivore. carnivore. decomposer. autotroph. heterotroph.________ is lifes primary source of energy. a. Food b. Water c. Sunlight d. ATP
- What are some advantages of being part of a food web rather trhan a food chain?Which statement about energy is false?Group of answer choices It includes work, plus anything that can be transformed into work. In chemical form, it is passed up the food chain, along with nutrients. It moves between the living and nonliving world. Because energy is neither created nor destroyed, ecosystems can run indefinitely without any input energy. Some ecosystems can function independent of the energy of sunlight.In a food chain, on average, of the food is burned for energy and exhaled and the energy becomes waste heat; the rest becomes part of the organisms' flesh. A. 10% B. 90% C. 50% D. 1%