I CALCULATOR COLOR THEME
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QUESTION GUIDE
9 EXIT TEST
7. Which of the following is most likely to cause the greatest disruption to an ecosystem?
Emptying an aquarium containing non-native species into a local
waterway
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Cutting down a small cedar tree to make holiday decorations
Cleaning the windshield of a car with an alcohol-based glass cleaner
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Mowing the lawn in a city park
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Why are adults bigger than they were as children biology

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

When coal has reached it hardest, darkest form, it is called select one: 0 a. sub-bituminous b. lignite c. bituminous d. antrhacite next page