NAS2 Challenge Exam 2024/2025 with 100% correct answers
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Course
NAS2 Challenge E
Institution
NAS2 Challenge E
Purpose of Scientific Method correct answerssolve a problem or answer a question
Question, Hypothesis, Experiment, Observe & Record, Analyze, Conclude correct answerssteps of scientific method
Independent variable correct answersa variable that stands alone and isn't changed by the other vari...
Independent variable correct answersa variable that stands alone and isn't changed by the other
variables you are trying to measure, change or controlled
example: age
dependent variable correct answersa variable dependent on other factors, tested or measured
example: test score - factors that go into a score you receive on a test
control group correct answersdoes not receive treatment and used to compare or measure the other
subjects
experimental group correct answersexposed to changes in independent variable
anatomy correct answersbranch of science concerned with bodily structure of living organisms; structure
physiology correct answersscience dealing with the functions of living things or their organs
level of organization correct answersliving things arranged from the simplest to most complex are:
organelle
cells
tissues
, organs
organ systems, organism
populations communities
ecosystem
biosphere
requirements for life correct answersCellular organization
homeostasis correct answersrelatively constant internal physical and chemical conditions that organisms
maintain
receptor correct answerssenses environmental stimulus and sends info to control center
control center correct answershypothalamus
signals effector
effector correct answersresponds to stimuli
example: muscle contracting
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