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When observing the Earth's biosphere organization, which is the smallest ecological level?
A population
A community
An organism
An ecosystem
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For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a.control b.hypothesis c.procedure d.system
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Which of the following is not a benefit of genetically modified foods? a.pest-resistant crops b.herbicide-resistant crops c.plants that do not require water?
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When observing the Earth's biosphere organization, which is the smallest ecological level?
A popula...
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