Nas 2 TCC Actual Exam
NAS 2 TCC ACTUAL EXAM NEWEST 2025/2026 COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS |ALREADY
GRADED A+||ALREADY GRADED A+
Define Anatomy and Physiology - ANSWER-Anatomy is the study of the structure
and relationship between body parts.
Physiology is the study of the function of body parts and the body as a whole.
Identify the six levels of organization (chemical, tissue, etc.) - ANSWER-1) Chemical
Level
2) Cellular level
3)Tissue level
4)Organ level
5)Organ system level
6) Organismal level
Identify the requirements for life: - ANSWER-1. Reproduction 2.
Response/reaction to environment 3. Metabolism 4. Growth.
Identify survival needs: - ANSWER-survival needs (5): nutrients, oxygen, water,
stable body temperature, and atmospheric pressure
What is homeostasis? - ANSWER-The tendency of an organism or a cell to regulate
its internal conditions, usually by a system of feedback controls, so as to stabilize
health and functioning, regardless of the outside changing conditions.
1|Page
, Nas 2 TCC Actual Exam
What are the basic mechanisms of homeostasis? - ANSWER-- Homeostatic control
mechanisms have at least three interdependent components: receptor, control
center, and effector.
- The receptor senses environmental stimuli, sending the information to the
control center.
- The control center, generally the brain, signals an effector (e.g. muscles) to
respond to the stimuli.
- Positive feedback enhances or accelerates output created by an activated
stimulus.
- Negative feedback brings a system back to its level of normal functioning such as
adjusting blood pressure, metabolism, and body temperature.
Anatomical position - ANSWER-Anatomical position is the description of any
region or part of the body in a specific stance. In the anatomical position, the
body is upright, directly facing the observer, feet flat and directed forward. The
upper limbs are at the body's sides with the palms facing forward.
What is the purpose of the scientific method? - ANSWER-The scientific method is
an organized way to study the natural world and find out how it works.
What are the steps of the scientific method? - ANSWER-Ask a Question.
Do Background Research.
Construct a Hypothesis.
Test Your Hypothesis by Doing an Experiment.
2|Page
, Nas 2 TCC Actual Exam
Analyze Your Data and Draw a Conclusion.
Communicate Your Results.
Distinguish between independent and dependent variables - ANSWER-An
independent variable is the variable that is changed or controlled in a scientific
experiment to test the effects on the dependent variable.
A dependent variable is the variable being tested and measured in a scientific
experiment.
Distinguish between control and experimental groups - ANSWER-An experimental
group is the group in an experiment that receives the variable being tested. One
variable is tested at a time. The experimental group is compared to a control
group, which does not receive the test variable.
Distinguish between hypothesis and theory. - ANSWER-A hypothesis is an attempt
to explain phenomena. It is a proposal, a guess used to understand and/or predict
something. A theory is the result of testing a hypothesis and developing an
explanation that is assumed to be true about something.
SUPERIOR - ANSWER-ABOVE THE HEAD IS SUPERIOR TO THE NECK
INFERIOR - ANSWER-BELOW THE NECK IS INFERIOR TO THE HEAD
ANTERIOR (VENTRAL) - ANSWER-CLOSE TO THE FRONT OF THE BODY -THE LIPS
ARE ANTERIOR TO THE TEETH
3|Page
NAS 2 TCC ACTUAL EXAM NEWEST 2025/2026 COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS |ALREADY
GRADED A+||ALREADY GRADED A+
Define Anatomy and Physiology - ANSWER-Anatomy is the study of the structure
and relationship between body parts.
Physiology is the study of the function of body parts and the body as a whole.
Identify the six levels of organization (chemical, tissue, etc.) - ANSWER-1) Chemical
Level
2) Cellular level
3)Tissue level
4)Organ level
5)Organ system level
6) Organismal level
Identify the requirements for life: - ANSWER-1. Reproduction 2.
Response/reaction to environment 3. Metabolism 4. Growth.
Identify survival needs: - ANSWER-survival needs (5): nutrients, oxygen, water,
stable body temperature, and atmospheric pressure
What is homeostasis? - ANSWER-The tendency of an organism or a cell to regulate
its internal conditions, usually by a system of feedback controls, so as to stabilize
health and functioning, regardless of the outside changing conditions.
1|Page
, Nas 2 TCC Actual Exam
What are the basic mechanisms of homeostasis? - ANSWER-- Homeostatic control
mechanisms have at least three interdependent components: receptor, control
center, and effector.
- The receptor senses environmental stimuli, sending the information to the
control center.
- The control center, generally the brain, signals an effector (e.g. muscles) to
respond to the stimuli.
- Positive feedback enhances or accelerates output created by an activated
stimulus.
- Negative feedback brings a system back to its level of normal functioning such as
adjusting blood pressure, metabolism, and body temperature.
Anatomical position - ANSWER-Anatomical position is the description of any
region or part of the body in a specific stance. In the anatomical position, the
body is upright, directly facing the observer, feet flat and directed forward. The
upper limbs are at the body's sides with the palms facing forward.
What is the purpose of the scientific method? - ANSWER-The scientific method is
an organized way to study the natural world and find out how it works.
What are the steps of the scientific method? - ANSWER-Ask a Question.
Do Background Research.
Construct a Hypothesis.
Test Your Hypothesis by Doing an Experiment.
2|Page
, Nas 2 TCC Actual Exam
Analyze Your Data and Draw a Conclusion.
Communicate Your Results.
Distinguish between independent and dependent variables - ANSWER-An
independent variable is the variable that is changed or controlled in a scientific
experiment to test the effects on the dependent variable.
A dependent variable is the variable being tested and measured in a scientific
experiment.
Distinguish between control and experimental groups - ANSWER-An experimental
group is the group in an experiment that receives the variable being tested. One
variable is tested at a time. The experimental group is compared to a control
group, which does not receive the test variable.
Distinguish between hypothesis and theory. - ANSWER-A hypothesis is an attempt
to explain phenomena. It is a proposal, a guess used to understand and/or predict
something. A theory is the result of testing a hypothesis and developing an
explanation that is assumed to be true about something.
SUPERIOR - ANSWER-ABOVE THE HEAD IS SUPERIOR TO THE NECK
INFERIOR - ANSWER-BELOW THE NECK IS INFERIOR TO THE HEAD
ANTERIOR (VENTRAL) - ANSWER-CLOSE TO THE FRONT OF THE BODY -THE LIPS
ARE ANTERIOR TO THE TEETH
3|Page
