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Slide 2 7 th Grade Science Matter and Energy Review Slide 3 A:B: Energy pyramidDecomposer pyramid C:D: Producer pyramidHerbivore pyramid #1 Producers, Primary Consumers, Secondary Consumers, & Tertiary Consumers are the four layers of this __________________.. Slide 4 A. Energy pyramid Slide 5 A:B: Energy LevelTrophic Level C:D: Producer levelHerbivore Level #2 Each level an organism occupies on this food chain in this pyramid is called a _________________. Slide 6 B. Trophic Level Slide 7 A:B: ProducersPrimary Consumers C:D: Secondary ConsumersTertiary Consumers #3 Which trophic level of this energy pyramid contains the most energy? Slide 8 A. Producers Slide 9 A:B: Primary consumersSecondary consumers C:D: SunNone of these #4 Where does the energy in the Producers trophic level come from? Slide 10 C. Sun Slide 11 A:B: ProducersPrimary Consumers C:D: Secondary ConsumersTertiary Consumers #5 What trophic level of this Energy pyramid has the least energy? Slide 12 D. Tertiary consumers Slide 13 A:B: omnivoreprey C:D: herbivoredecomposer #6 Organisms that break down the remains of plants and other organisms. Slide 14 D. decomposer Slide 15 A:B: heatelectromagnetic C:D: hydroelectricNone of these In a compost pile, microorganisms (decomposers) break down materials. *In this process, chemical energy is converted to _______ energy. #7 Slide 16 A. Heat Slide 17 A:B: food chainconsumer chain C:D: trophic chainNone of these #8 This energy pyramid also lists four organisms in order in a __________ from Producer to Tertiary Consumer. (For the test, be able to list organisms in order in a food chain.) Slide 18 A. Food chain Slide 19 A:B: The hawks would decrease, the mice would increase, & the corn would decrease The hawks would increase, the mice would decrease, & the corn would increase C:D: Both of theseNeither of these What would happen in this food chain if a disease killed off most of the snakes? #9 Slide 20 A. The hawks would decrease, the mice would increase, & the corn would decrease Slide 21 A:B: The mice, snakes, and hawks would all increase The mice, snakes, and hawks would all decrease C:D: Both of theseNeither of these What would happen if these was no corn in this ecosystem? #10 Slide 22 B. The mice, snakes, and hawks would all decrease Slide 23 A:B: Producer Consumer C:D: DecomposerNone of these What kind of organism is not shown in this diagram? #11 Slide 24 C. Decomposer Slide 25 A:B: corn mouse C:D: snakehawk Which of these organisms is responsible for the transfer of radiant energy (sun) to chemical energy? #12 Slide 26 A. Corn Slide 27 A:B: Consumers C:D: DecomposersOmnivores Producers #13 What type of organisms are necessary to insure that nutrients are returned to nature? Slide 28 C. Decomposers Slide 29 A:B: ChemicalPhysical C:D: MechanicalNone of these #14 *Decomposers produce heat when they are breaking down dead material. *The energy in the dead organisms is being converted to heat energy. What type of energy is being converted? Slide 30 A. Chemical Slide 31 A:B: Decomposers kill trees as a means of controlling tree populations Decomposers are not necessary for the growth of trees C:D: Decomposers provide trees have important nutrients None of these #15 What important roll do decomposers play in the growth of trees in a forest? Slide 32 C. Decomposers provide trees with important nutrients. Slide 33 A:B: Consumers C:D: DecomposersOmnivores Producers #16 What type of organisms are necessary to insure that nutrients are returned to nature? Slide 34 C. Decomposers Slide 35 A:B: PhotosynthesisRespiration #17 6CO 2 + 6H 2 O + sunlight energy C 6 H 12 O 6 + 6O 2 What does this equation represent? C:D: NeitherBoth Slide 36 A. Photosynthesis Slide 37 A:B: mechanicalchemical #18 6CO 2 + 6H 2 O + sunlight energy C 6 H 12 O 6 + 6O 2 The light energy that is shown in this reaction is converted into ______ energy. C:D: electricalNone of these Slide 38 B. Chemical Slide 39 A:B: heterotrophautotroph C:D: consumerNone of these #20 An organism that produces its own food using light, water, carbon dioxide and other chemicals. Example: plants (producers) Slide 40 B. Autotroph Slide 41 A:B: heterotrophautotroph C:D: consumerNone of these #21 An organism that feeds off of other forms of life. Example: wolf (consumers) Slide 42 A. Heterotroph Slide 43 A:B: EukaryoticProkaryotic C:D: BothNeither #22 An organism that has a nucleus and organelles. Slide 44 A. Eukaryotic Slide 45 A:B: EukaryoticProkaryotic C:D: BothNeither #23 An organism that does not have a nucleus and organelles. Slide 46 B. Prokaryotic Slide 47 *Be able to create a food web, such as the one above, using at least seven different organisms. Wheat CloverDandelion #24 Slide 48 *Draw a energy pyramid *Describe the energy flow *Use the following terms autotroph, heterotroph, producer, primary consumer, secondary consumer, and tertiary consumer #25 Slide 49 Great Job!!!! Great Job!!!! Thank you for playing! Thank you for playing!