A(n) ___________ is a factor that can be changed in an experiment to test whether and how it affects the outcome.
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Q45: The _ registers the signal coming from
Q46: Humans display _ behavior by accepting responsibility
Q47: How are all living organisms similar?
Q48: Describe how a feedback system maintains homeostasis.
Q49: The ability to maintain a stable internal
Q50: Organizationally, the planet Earth is a _.
Q52: Science seeks to answer questions about important
Q53: How are living organisms categorized?
Q54: Design an experiment to test the hypothesis
Q55: The branch of science dealing with the
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