NAS 2 TCC study guide questions with
answers
What is the purpose of the scientific method? - ....🔰VERIFIED ANSWERS....
✔✔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? - ....🔰VERIFIED ANSWERS....
✔✔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 - ....🔰VERIFIED
ANSWERS.... ✔✔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 - ....🔰VERIFIED
ANSWERS.... ✔✔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. - ....🔰VERIFIED ANSWERS....
✔✔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 - ....🔰VERIFIED ANSWERS.... ✔✔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.) - ....🔰VERIFIED
ANSWERS.... ✔✔1) Chemical Level
2) Cellular level
3)Tissue level
4)Organ level
5)Organ system level
6) Organismal level
Identify the requirements for life: - ....🔰VERIFIED ANSWERS.... ✔✔1.
Reproduction 2. Response/reaction to environment 3. Metabolism 4. Growth.
Identify survival needs: - ....🔰VERIFIED ANSWERS.... ✔✔survival needs (5):
nutrients, oxygen, water, stable body temperature, and atmospheric pressure
, What is homeostasis? - ....🔰VERIFIED ANSWERS.... ✔✔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? - ....🔰VERIFIED
ANSWERS.... ✔✔- 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 - ....🔰VERIFIED ANSWERS.... ✔✔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 - ....🔰VERIFIED ANSWERS.... ✔✔ABOVE THE HEAD IS
SUPERIOR TO THE NECK
answers
What is the purpose of the scientific method? - ....🔰VERIFIED ANSWERS....
✔✔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? - ....🔰VERIFIED ANSWERS....
✔✔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 - ....🔰VERIFIED
ANSWERS.... ✔✔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 - ....🔰VERIFIED
ANSWERS.... ✔✔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. - ....🔰VERIFIED ANSWERS....
✔✔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 - ....🔰VERIFIED ANSWERS.... ✔✔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.) - ....🔰VERIFIED
ANSWERS.... ✔✔1) Chemical Level
2) Cellular level
3)Tissue level
4)Organ level
5)Organ system level
6) Organismal level
Identify the requirements for life: - ....🔰VERIFIED ANSWERS.... ✔✔1.
Reproduction 2. Response/reaction to environment 3. Metabolism 4. Growth.
Identify survival needs: - ....🔰VERIFIED ANSWERS.... ✔✔survival needs (5):
nutrients, oxygen, water, stable body temperature, and atmospheric pressure
, What is homeostasis? - ....🔰VERIFIED ANSWERS.... ✔✔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? - ....🔰VERIFIED
ANSWERS.... ✔✔- 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 - ....🔰VERIFIED ANSWERS.... ✔✔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 - ....🔰VERIFIED ANSWERS.... ✔✔ABOVE THE HEAD IS
SUPERIOR TO THE NECK
