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NAS 2 Challenge Exam – Questions/Answers
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NAS 2 Challenge Exam – Questions/Answers
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NAS 2 Challenge Exam – Questions/AnswersWhat is the purpose of the scientific method ✔️Ans - to clearly do an
experiment by process of steps helping you keep track and correct any
mistakes and to show others how you got to the result that you achieved in
conclusion
Identify the purpose of the scientific method ✔️Ans - 1.Ask a question
2.Do Background research
3 Construct a hypothesis
4.test your hypothesis by doing an experiment
5 analyze your data and draw a conclusion
6. Communicate your results
What is the difference between an independent variable and and
dependent variable ✔️Ans - Value of an independent can be changed.
You cannot change the value of dependent variable. the independent
variable is the value which is manipulated in an experiment. The
dependent variable is compared to the control group, which does not
recieve the test variable
Anatomy ✔️Ans - The study of structure and shape of the body and its
parts and relation to one another
Physiology ✔️Ans - Study of how the body and its parts work or
function
Six Levels of organization ✔️Ans - 1. Chemicals (atoms and molecules)
2. Cellular
3. Tissue
4. Organ
5. Organ system
6. Organismal
Identify Requirements for Life ✔️Ans - The ability to :maintain one's
boundaries, move ,respond to stimuli,digest food, metabolize,excrete
waist,reproduce,grow
, Identify survival needs ✔️Ans - 1. Nutrients
2. Oxygen
3. Water
4. Appropriate temperture
5. Appropriate atmospheric pressure
Homeostasis ✔️Ans - A balance in which internal conditions change and
very but always within relatively narrow limits
Basic Mechanism for homeostasis (receptor, control center, etc) ✔️Ans -
Negative feedback mechanism
Negative feedback mechanism ✔️Ans - Works to shut off original
stimulus or reduce its intensity
Positive feedback mechanism ✔️Ans - tend to increase the original
stimulus
Anatomical Position ✔️Ans - the body is erect with the feet parallel and
the arms hanging at the side with palms facing forward
Superior (Cranial/Cephalid) ✔️Ans - Toward the head end or upper
part of the structure;above
Dorsal/Posterior ✔️Ans - Toward the backside of the body;behind
Proximal ✔️Ans - Close to the origin of a body part or the point of
attachment of a limb to the body trunk
Thoracic ✔️Ans - chest
Cervical ✔️Ans - Neck region
Gluteal ✔️Ans - buttock
Major planes of dissection ✔️Ans - 1. Sagittal(left/right)
2. Frontal/Coronal (back/front)
3 Transverse (top/bottom)
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