NAS2 Challenge Exam
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
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
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
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
