NAS 2 TCC study guide Questions With
Complete Solutions | Updated
/. 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.
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.
/.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.
/.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.
/.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
/.POSTERIOR (DORSAL) - Answer-CLOSE TO THE BACK OF THE BODY- THE
TEETH ARE POSTERIOR TO THE LIPS
/.MEDIAL - Answer-CLOSER TO THE MIDLINE OF THE BODY- THE NOSE IS
MEDIAL TO THE EYES
/.LATERAL - Answer-FARTHER FROM THE MIDLINE OF THE BODY- THE EYES
ARE LATERAL TO THE NOSE
/.INTERMEDIATE - Answer-BETWEEN TWO STRUCTURES- THE ELBOW IS
INTERMEDIATE BETWEEN THE SHOULDER AND WRIST
Complete Solutions | Updated
/. 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.
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.
/.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.
/.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.
/.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
/.POSTERIOR (DORSAL) - Answer-CLOSE TO THE BACK OF THE BODY- THE
TEETH ARE POSTERIOR TO THE LIPS
/.MEDIAL - Answer-CLOSER TO THE MIDLINE OF THE BODY- THE NOSE IS
MEDIAL TO THE EYES
/.LATERAL - Answer-FARTHER FROM THE MIDLINE OF THE BODY- THE EYES
ARE LATERAL TO THE NOSE
/.INTERMEDIATE - Answer-BETWEEN TWO STRUCTURES- THE ELBOW IS
INTERMEDIATE BETWEEN THE SHOULDER AND WRIST
