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NAS2 Challenge Exam Questions and
Correct Answers/ Latest Update / Already
Graded
Purpose of Scientific Method
Ans: solve a problem or answer a question
Question, Hypothesis, Experiment, Observe & Record, Analyze,
Conclude
Ans: steps of scientific method
Independent variable
Ans: a variable that stands alone and isn't changed by the
other variables you are trying to measure, change or controlled
example: age
dependent variable
Ans: a variable dependent on other factors, tested or measured
example: test score - factors that go into a score you receive on
a test
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control group
Ans: does not receive treatment and used to compare or
measure the other subjects
experimental group
Ans: exposed to changes in independent variable
anatomy
Ans: branch of science concerned with bodily structure of living
organisms; structure
physiology
Ans: science dealing with the functions of living things or their
organs
level of organization
Ans: living things arranged from the simplest to most complex
are:
organelle
cells
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tissues
organs
organ systems, organism
populations communities
ecosystem
biosphere
requirements for life
Ans: Cellular organization
Reproduction
Metabolism
Homeostasis
Heredity
Response to stimuli
Growth and development
Adaptation through evolution
survival needs
Ans: Food, oxygen, water, body temperature, atmospheric
pressure (oxygen/carbon dioxide exchange)
All rights reserved © 2025/ 2026 |
NAS2 Challenge Exam Questions and
Correct Answers/ Latest Update / Already
Graded
Purpose of Scientific Method
Ans: solve a problem or answer a question
Question, Hypothesis, Experiment, Observe & Record, Analyze,
Conclude
Ans: steps of scientific method
Independent variable
Ans: a variable that stands alone and isn't changed by the
other variables you are trying to measure, change or controlled
example: age
dependent variable
Ans: a variable dependent on other factors, tested or measured
example: test score - factors that go into a score you receive on
a test
All rights reserved © 2025/ 2026 |
, Page |2
control group
Ans: does not receive treatment and used to compare or
measure the other subjects
experimental group
Ans: exposed to changes in independent variable
anatomy
Ans: branch of science concerned with bodily structure of living
organisms; structure
physiology
Ans: science dealing with the functions of living things or their
organs
level of organization
Ans: living things arranged from the simplest to most complex
are:
organelle
cells
All rights reserved © 2025/ 2026 |
, Page |3
tissues
organs
organ systems, organism
populations communities
ecosystem
biosphere
requirements for life
Ans: Cellular organization
Reproduction
Metabolism
Homeostasis
Heredity
Response to stimuli
Growth and development
Adaptation through evolution
survival needs
Ans: Food, oxygen, water, body temperature, atmospheric
pressure (oxygen/carbon dioxide exchange)
All rights reserved © 2025/ 2026 |
