NAS 2 TCC STUDY GUIDE ACTUAL (2025) REAL EXAM
QUESTIONS AND VERIFIED (GUARANTEED PASS)
GRADED A+!!!.
NAS 2 TCC
What is the purpose of the scientific method? - - ANS - -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? - - ANS - -Ask a Question.
Do Background Research.
Construct a Hypothesis.
Test Your Hypothesis by Doing an Experiment.
Analyze Your Data and Draw a Conclusion.
Communicate Your Results.
Distinguish between independent and dependent variables - - ANS - -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 - - ANS - -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. - - ANS - -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.
Define Anatomy and Physiology - - ANS - -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.) - - ANS - -1) Chemical
Level
2) Cellular level
3)Tissue level
4)Organ level
5)Organ system level
6) Organismal level
Identify the requirements for life: - - ANS - -1. Reproduction 2. Response/reaction to
environment 3. Metabolism 4. Growth.
,Identify survival needs: - - ANS - -survival needs (5): nutrients, oxygen, water, stable
body temperature, and atmospheric pressure
What is homeostasis? - - ANS - -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.
What are the basic mechanisms of homeostasis? - - ANS - -- 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 - - ANS - -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.
SUPERIOR - - ANS - -ABOVE THE HEAD IS SUPERIOR TO THE NECK
INFERIOR - - ANS - -BELOW THE NECK IS INFERIOR TO THE HEAD
, ANTERIOR (VENTRAL) - - ANS - -CLOSE TO THE FRONT OF THE BODY -THE LIPS ARE
ANTERIOR TO THE TEETH
POSTERIOR (DORSAL) - - ANS - -CLOSE TO THE BACK OF THE BODY- THE TEETH ARE
POSTERIOR TO THE LIPS
MEDIAL - - ANS - -CLOSER TO THE MIDLINE OF THE BODY- THE NOSE IS MEDIAL TO
THE EYES
LATERAL - - ANS - -FARTHER FROM THE MIDLINE OF THE BODY- THE EYES ARE
LATERAL TO THE NOSE
INTERMEDIATE - - ANS - -BETWEEN TWO STRUCTURES- THE ELBOW IS INTERMEDIATE
BETWEEN THE SHOULDER AND WRIST
IPSILATERAL - - ANS - -ON THE SAME SIDE OF THE BODY- THE RIGHT ARM AND THE
RIGHT LEG ARE IPSILATERAL
CONTRALATERAL - - ANS - -ON OPPOSITES SIDES OF THE BODY- THE RIGHT ARM IS
CONTRALATERAL TO THE LEFT ARM
PROXIMAL - - ANS - -NEARER TO THE POINT OF ATTACHMENT- THE ELBOW IS
PROXIMAL TO THE WRIST
DISTAL - - ANS - -FARTHER FROM THE POINT OF ATTACHMENT OF LIMB OR TRUNK-
THE WRIST IS DISTAL TO THE ELBOW
QUESTIONS AND VERIFIED (GUARANTEED PASS)
GRADED A+!!!.
NAS 2 TCC
What is the purpose of the scientific method? - - ANS - -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? - - ANS - -Ask a Question.
Do Background Research.
Construct a Hypothesis.
Test Your Hypothesis by Doing an Experiment.
Analyze Your Data and Draw a Conclusion.
Communicate Your Results.
Distinguish between independent and dependent variables - - ANS - -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 - - ANS - -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. - - ANS - -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.
Define Anatomy and Physiology - - ANS - -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.) - - ANS - -1) Chemical
Level
2) Cellular level
3)Tissue level
4)Organ level
5)Organ system level
6) Organismal level
Identify the requirements for life: - - ANS - -1. Reproduction 2. Response/reaction to
environment 3. Metabolism 4. Growth.
,Identify survival needs: - - ANS - -survival needs (5): nutrients, oxygen, water, stable
body temperature, and atmospheric pressure
What is homeostasis? - - ANS - -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.
What are the basic mechanisms of homeostasis? - - ANS - -- 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 - - ANS - -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.
SUPERIOR - - ANS - -ABOVE THE HEAD IS SUPERIOR TO THE NECK
INFERIOR - - ANS - -BELOW THE NECK IS INFERIOR TO THE HEAD
, ANTERIOR (VENTRAL) - - ANS - -CLOSE TO THE FRONT OF THE BODY -THE LIPS ARE
ANTERIOR TO THE TEETH
POSTERIOR (DORSAL) - - ANS - -CLOSE TO THE BACK OF THE BODY- THE TEETH ARE
POSTERIOR TO THE LIPS
MEDIAL - - ANS - -CLOSER TO THE MIDLINE OF THE BODY- THE NOSE IS MEDIAL TO
THE EYES
LATERAL - - ANS - -FARTHER FROM THE MIDLINE OF THE BODY- THE EYES ARE
LATERAL TO THE NOSE
INTERMEDIATE - - ANS - -BETWEEN TWO STRUCTURES- THE ELBOW IS INTERMEDIATE
BETWEEN THE SHOULDER AND WRIST
IPSILATERAL - - ANS - -ON THE SAME SIDE OF THE BODY- THE RIGHT ARM AND THE
RIGHT LEG ARE IPSILATERAL
CONTRALATERAL - - ANS - -ON OPPOSITES SIDES OF THE BODY- THE RIGHT ARM IS
CONTRALATERAL TO THE LEFT ARM
PROXIMAL - - ANS - -NEARER TO THE POINT OF ATTACHMENT- THE ELBOW IS
PROXIMAL TO THE WRIST
DISTAL - - ANS - -FARTHER FROM THE POINT OF ATTACHMENT OF LIMB OR TRUNK-
THE WRIST IS DISTAL TO THE ELBOW
