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NAS 2 Challenge Exam – Questions With Complete Solutions
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NAS 2 Challenge Exam – Questions With Complete Solutions
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NAS 2 Challenge Exam – QuestionsWith Complete Solutions
Scientific Method Correct Ans - A series of steps followed to solve
problems
Steps of scientific method Correct Ans - 1. Ask questions
2. Hypothesis
3. Test hypothesis
4. Analyze results
5. Draw conclusion
6. Report results
Independent Variable Correct Ans - What is changed
Dependent Variable Correct Ans - What is measured
Control Correct Ans - Constant
Anatomy Correct Ans - Study of structure
Physiology Correct Ans - Study of functions
levels of Organization Correct Ans - 1. Chemicals
2. Cells
3. Tissues
4. Organs
5. Body system
6. Organism
Life Functions Correct Ans - 1. Maintain boundary
2. Movement
3. Excretion
4. Growth
5. Reproduction
6. Digestion
7. Responsiveness
, Survival Needs Correct Ans - Nutrients
Water
Oxygen
appropriate temperature
Atmosphere pressure
Homeostasis Correct Ans - Maintenance of a stable internal
environment
Receptor Correct Ans - protein that detects a signal molecule and
performs an action in response. Detects change
Control Center Correct Ans - determines the set point at which the
variable is maintained
Stimulus Correct Ans - Produces change. Is a response
Effector Correct Ans - body structure that receives output from the
control center and produces a response or effect that changes the
controlled condition
What might employ positive or negative feedback loops? Correct Ans -
Receptors, control center, and effectors
Positive Feedback Correct Ans - Effector response that enhances or
exaggerates the original stimulus (ex. Blood clots and labor and delivery)
Negative Feedback Correct Ans - Effector reduces
eliminates the original stimulus (ex. Temp control in body, blood pressure,
blood sugar)
Anatomical Position Correct Ans - Standing upright
Arms to the side
Legs parallel
Feet\toes forward
Plans forward
Eyes straight ahead
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