Presentation on theme: "7 th Grade Science Matter and Energy Review A:B: Energy pyramidDecomposer pyramid C:D: Producer pyramidHerbivore pyramid #1 Producers, Primary Consumers,"— Presentation transcript:
7 th Grade Science Matter and Energy Review
A:B: Energy pyramidDecomposer pyramid C:D: Producer pyramidHerbivore pyramid #1 Producers, Primary Consumers, Secondary Consumers, & Tertiary Consumers are the four layers of this __________________..
A. Energy pyramid
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 _________________.
B. Trophic Level
A:B: ProducersPrimary Consumers C:D: Secondary ConsumersTertiary Consumers #3 Which trophic level of this energy pyramid contains the most energy?
A:B: Primary consumersSecondary consumers C:D: SunNone of these #4 Where does the energy in the Producers trophic level come from?
A:B: ProducersPrimary Consumers C:D: Secondary ConsumersTertiary Consumers #5 What trophic level of this Energy pyramid has the least energy?
D. Tertiary consumers
A:B: omnivoreprey C:D: herbivoredecomposer #6 Organisms that break down the remains of plants and other organisms.
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
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.)
A. Food chain
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
A. The hawks would decrease, the mice would increase, & the corn would decrease
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
B. The mice, snakes, and hawks would all decrease
A:B: Producer Consumer C:D: DecomposerNone of these What kind of organism is not shown in this diagram? #11
A:B: corn mouse C:D: snakehawk Which of these organisms is responsible for the transfer of radiant energy (sun) to chemical energy? #12
A:B: Consumers C:D: DecomposersOmnivores Producers #13 What type of organisms are necessary to insure that nutrients are returned to nature?
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?
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?
C. Decomposers provide trees with important nutrients.
A:B: Consumers C:D: DecomposersOmnivores Producers #16 What type of organisms are necessary to insure that nutrients are returned to nature?
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
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
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)
A:B: heterotrophautotroph C:D: consumerNone of these #21 An organism that feeds off of other forms of life. Example: wolf (consumers)
A:B: EukaryoticProkaryotic C:D: BothNeither #22 An organism that has a nucleus and organelles.
A:B: EukaryoticProkaryotic C:D: BothNeither #23 An organism that does not have a nucleus and organelles.
*Be able to create a food web, such as the one above, using at least seven different organisms. Wheat CloverDandelion #24
*Draw a energy pyramid *Describe the energy flow *Use the following terms autotroph, heterotroph, producer, primary consumer, secondary consumer, and tertiary consumer #25
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