Answer: The answer is variable.
Explanation: Scientists may do a start out hypothesis on the info they have. But if something changes in that experiment, it is the Variable.
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Answer:
4
Explanation:
Susan won't be feeling normal sleep nor normal heart rate because sleep deprivation is a serious issue. She would have an upset stomach and might even have a diarrhea.
Answer: D
Explanation: As a result of scarce resources, societies must answer three key economic questions: – What goods and services should be produced? – How should these goods and services be produced? – Who consumes these goods and services?