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Which is a component of cell theory? 

Which is a component of cell theory? 

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 A(n) _____ is a possible explanation for what is observed t…

 A(n) _____ is a possible explanation for what is observed that is based on some previous knowledge, can be tested, and shown to be false. 

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Water is very cool and it has many interesting properties. W…

Water is very cool and it has many interesting properties. Which of the following is NOT a property of water?

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The pH scale is a range from 

The pH scale is a range from 

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If you discovered a new species of bottom dwelling rockfish…

If you discovered a new species of bottom dwelling rockfish in a fisherman’s net, you could assume it was from the 

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The second law of thermodynamics is that 

The second law of thermodynamics is that 

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The nitrogen cycle is disrupted by humans in two primary way…

The nitrogen cycle is disrupted by humans in two primary ways, burning fossil fuels releasing nitrogen oxides and 

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The first law of thermodynamics is that

The first law of thermodynamics is that

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“Chemical X” was used widely in the United States as an inse…

“Chemical X” was used widely in the United States as an insecticide for many years. Eventually, research showed “chemical X” was a persistent chemical that bioaccumulated and biomagnified in the environment. The chemical was later banned from use in the United States.   You are writing a report on the history of chemical X in the United States. Your instructor says that all sources used for your report must be primary sources. Which of the following would you choose?

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Buffers are capable of 

Buffers are capable of 

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