NAS 2 CHALLENGE TEST BANK 2026
QUESTIONS WITH VERIFIED ANSWERS
GRADED A+
◉ 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
◉ control center. Answer: hypothalamus
signals effector
◉ effector. Answer: responds to stimuli
example: muscle contracting
QUESTIONS WITH VERIFIED ANSWERS
GRADED A+
◉ 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
◉ control center. Answer: hypothalamus
signals effector
◉ effector. Answer: responds to stimuli
example: muscle contracting
