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NAS2 Challenge Exam Study Guide 100%
Verified And Updated.
Purpose of Scientific Method - Answer✔solve a problem or answer a question
Question, Hypothesis, Experiment, Observe & Record, Analyze, Conclude - Answer✔steps of
scientific method
Independent variable - Answer✔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 - Answer✔a variable dependent on other factors, tested or measured
example: test score - factors that go into a score you receive on a test
control group - Answer✔does not receive treatment and used to compare or measure the
other subjects
experimental group - Answer✔exposed to changes in independent variable
anatomy - Answer✔branch of science concerned with bodily structure of living organisms;
structure
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, ©THEBRIGHT 2025 ALL RIGHTS RESERVED 11:12 AM A+
physiology - Answer✔science dealing with the functions of living things or their organs
level of organization - Answer✔living things arranged from the simplest to most complex are:
organelle
cells
tissues
organs
organ systems, organism
populations communities
ecosystem
biosphere
requirements for life - Answer✔Cellular organization
Reproduction
Metabolism
Homeostasis
Heredity
Response to stimuli
Growth and development
Adaptation through evolution
survival needs - Answer✔Food, oxygen, water, body temperature, atmospheric pressure
(oxygen/carbon dioxide exchange)
homeostasis - Answer✔relatively constant internal physical and chemical conditions that
organisms maintain
receptor - Answer✔senses environmental stimulus and sends info to control center
2|Page
NAS2 Challenge Exam Study Guide 100%
Verified And Updated.
Purpose of Scientific Method - Answer✔solve a problem or answer a question
Question, Hypothesis, Experiment, Observe & Record, Analyze, Conclude - Answer✔steps of
scientific method
Independent variable - Answer✔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 - Answer✔a variable dependent on other factors, tested or measured
example: test score - factors that go into a score you receive on a test
control group - Answer✔does not receive treatment and used to compare or measure the
other subjects
experimental group - Answer✔exposed to changes in independent variable
anatomy - Answer✔branch of science concerned with bodily structure of living organisms;
structure
1|Page
, ©THEBRIGHT 2025 ALL RIGHTS RESERVED 11:12 AM A+
physiology - Answer✔science dealing with the functions of living things or their organs
level of organization - Answer✔living things arranged from the simplest to most complex are:
organelle
cells
tissues
organs
organ systems, organism
populations communities
ecosystem
biosphere
requirements for life - Answer✔Cellular organization
Reproduction
Metabolism
Homeostasis
Heredity
Response to stimuli
Growth and development
Adaptation through evolution
survival needs - Answer✔Food, oxygen, water, body temperature, atmospheric pressure
(oxygen/carbon dioxide exchange)
homeostasis - Answer✔relatively constant internal physical and chemical conditions that
organisms maintain
receptor - Answer✔senses environmental stimulus and sends info to control center
2|Page
