NAS 2 TCC STUDY GUIDE 2024-2025
QUESTIONS WITH 100% CORRECT ANSWER
What is the purpose of the scientific method? - CORRECT 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? - CORRECT 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 - CORRECT 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 - CORRECT 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.
,NAS 2 TCC STUDY GUIDE 2024-2025
QUESTIONS WITH 100% CORRECT ANSWER
Distinguish between hypothesis and theory. - CORRECT 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 - CORRECT 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.) - CORRECT
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: - CORRECT ANSWER 1. Reproduction 2.
Response/reaction to environment 3. Metabolism 4. Growth.
, NAS 2 TCC STUDY GUIDE 2024-2025
QUESTIONS WITH 100% CORRECT ANSWER
Identify survival needs: - CORRECT ANSWER survival needs (5): nutrients,
oxygen, water, stable body temperature, and atmospheric pressure
What is homeostasis? - CORRECT 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? - CORRECT 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 - CORRECT 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.
QUESTIONS WITH 100% CORRECT ANSWER
What is the purpose of the scientific method? - CORRECT 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? - CORRECT 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 - CORRECT 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 - CORRECT 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.
,NAS 2 TCC STUDY GUIDE 2024-2025
QUESTIONS WITH 100% CORRECT ANSWER
Distinguish between hypothesis and theory. - CORRECT 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 - CORRECT 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.) - CORRECT
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: - CORRECT ANSWER 1. Reproduction 2.
Response/reaction to environment 3. Metabolism 4. Growth.
, NAS 2 TCC STUDY GUIDE 2024-2025
QUESTIONS WITH 100% CORRECT ANSWER
Identify survival needs: - CORRECT ANSWER survival needs (5): nutrients,
oxygen, water, stable body temperature, and atmospheric pressure
What is homeostasis? - CORRECT 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? - CORRECT 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 - CORRECT 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.
