NAS2 Challenge Exam UPDATED ACTUAL
Exam Questions and CORRECT Answers
Purpose of Scientific Method - CORRECT ANSWER - solve a problem or answer a
question
Question, Hypothesis, Experiment, Observe & Record, Analyze, Conclude - CORRECT
ANSWER - steps of scientific method
Independent variable - CORRECT 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 - CORRECT 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 - CORRECT ANSWER - does not receive treatment and used to compare or
measure the other subjects
experimental group - CORRECT ANSWER - exposed to changes in independent variable
anatomy - CORRECT ANSWER - branch of science concerned with bodily structure of
living organisms; structure
physiology - CORRECT ANSWER - science dealing with the functions of living things or
their organs
, level of organization - CORRECT 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 - CORRECT ANSWER - Cellular organization
Reproduction
Metabolism
Homeostasis
Heredity
Response to stimuli
Growth and development
Adaptation through evolution
survival needs - CORRECT ANSWER - Food, oxygen, water, body temperature,
atmospheric pressure (oxygen/carbon dioxide exchange)
homeostasis - CORRECT ANSWER - relatively constant internal physical and chemical
conditions that organisms maintain
receptor - CORRECT ANSWER - senses environmental stimulus and sends info to control
center
Exam Questions and CORRECT Answers
Purpose of Scientific Method - CORRECT ANSWER - solve a problem or answer a
question
Question, Hypothesis, Experiment, Observe & Record, Analyze, Conclude - CORRECT
ANSWER - steps of scientific method
Independent variable - CORRECT 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 - CORRECT 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 - CORRECT ANSWER - does not receive treatment and used to compare or
measure the other subjects
experimental group - CORRECT ANSWER - exposed to changes in independent variable
anatomy - CORRECT ANSWER - branch of science concerned with bodily structure of
living organisms; structure
physiology - CORRECT ANSWER - science dealing with the functions of living things or
their organs
, level of organization - CORRECT 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 - CORRECT ANSWER - Cellular organization
Reproduction
Metabolism
Homeostasis
Heredity
Response to stimuli
Growth and development
Adaptation through evolution
survival needs - CORRECT ANSWER - Food, oxygen, water, body temperature,
atmospheric pressure (oxygen/carbon dioxide exchange)
homeostasis - CORRECT ANSWER - relatively constant internal physical and chemical
conditions that organisms maintain
receptor - CORRECT ANSWER - senses environmental stimulus and sends info to control
center
