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NAS 2 CHALLENGE EXAM TIDEWATER COMMUNITY COLLEGE with 100% correct Answers(latest update )
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NAS 2 CHALLENGE EXAM TIDEWATER COMMUNITY COLLEGE with 100% correct Answers(latest update )
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NAS 2 CHALLENGE EXTIDEWATER COMMUNI
COLLEGE with 100%
correct Answers(latest
update 2024-2025)
purpose of scientific method - CORRECT>> g
researchers in planning, conducting, and inte
research studies
order of scientific method - CORRECT>> obs
question, hypothesis, prediction, experimen
conclusion
Steps of the Scientific Method - CORRECT>>
Question
Do Background Research
Construct a Hypothesis
Test Your Hypothesis by Doing an Experimen
,sample size - CORRECT>> the number of tim
measurement is replicated in data collection
Trials - CORRECT>> the number of times an
experiment is repeated
Control - CORRECT>> In an experiment, the
that is used for comparison
Placebo - CORRECT>> something which has a
positive mental effect, but no physical effec
independent variable - CORRECT>> The expe
factor that is manipulated; the variable who
is being studied.
dependent variable - CORRECT>> The outcom
factor; the variable that may change in resp
manipulations of the independent variable.
Constants/Controlled Variables - CORRECT>>
,Levels of organization - CORRECT>> chemica
cellular, tissue, organ, organ system, organi
CHEMICAL - CORRECT>> any substance that
definite composition
CELL - CORRECT>> The basic unit of structu
function in living things
Tissue - CORRECT>> A group of similar cells
perform the same function.
Organ - CORRECT>> A collection of tissues t
out a specialized function of the body
organ system - CORRECT>> A group of organ
work together to perform a major function.
Organism - CORRECT>> A living thing
survival needs - CORRECT>> nutrients, oxyge
water, normal body temperature, appropriat
, homeostatic mechanisms - CORRECT>> self-
regulating systems that monitor aspects of th
internal environment and correct them as ne
components of homeostasis - CORRECT>> st
receptor, control center, set point, effector
Stimulus - CORRECT>> a signal to which an
organism responds
Receptor - CORRECT>> protein that detects
molecule and performs an action in response
control center - CORRECT>> processes the s
sends instructions
set point - CORRECT>> A set point is the
physiologicalvalue around which the normal
fluctuates
Effector - CORRECT>> an organ or cell that a
response to a stimulus.
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