NAS 2 TCC EXAM LATEST 2026-2027 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (100%
VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
Transcription and Translation - ANSWER-Transcription is the
process of making an RNA copy of a gene sequence. This copy,
called a messenger RNA (mRNA) molecule, leaves the cell
nucleus and enters the cytoplasm, where it directs the synthesis
of the protein, which it encodes.
Translation is the process of translating the sequence of a
messenger RNA (mRNA) molecule to a sequence of amino acids
during protein synthesis.
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.
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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
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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.