The zone of the Earth that includes all living organisms is called the:?

A. ?troposphere.
B. ?biosphere.
C. ?ozone.
D. ?atmosphere.


Answer: B

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A researcher selects 60 students from a numbered list of all the elementary students in a school by using a table of random numbers. This is an example of

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Explain how it can be that what for one student represents low-order thinking for another might be high-order thinking

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