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Bio Test 1 Cengage – Questions & Accurate Answers
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Bio Test 1 Cengage – Questions & Accurate Answers
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Bio Test 1 Cengage – Questions & Accurate AnswersHomeostasis is the state of chemical and physical stability within the body.
Right Ans - true
Critical thinking is a way of evaluating information before acting. Right Ans
- true
The sun's energy enters the Earth's cycles through the process of cellular
respiration. Right Ans - false
One important reason for the spread of contagious disease is the misuse of
antibiotics. Right Ans - true
The scientific method necessitates that a testable hypothesis is formed.
Right Ans - true
Humans are related to all other life forms but we share certain characteristics
such as body hair with only other invertebrates. Right Ans - false
In considering the use of the scientific method, value judgments always help
with the final assessment. Right Ans - false
Although health care and medical advances have improved the overall health
of humans, we are also facing challenges from diseases that have never
afflicted humans before. Right Ans - true
In science, a theory is an untested idea about something. Right Ans - false
The biosphere comprises all living things, as well as the Earth, air and water.
Right Ans - true
A control group is a factor that can change over time or under different
circumstances. Right Ans - false
One characteristic that sets humans apart from all other animals is our ability
to participate in very complex social systems. Right Ans - true
, One important aspect of distinguishing living things from non-living things is
the ability to maintain homeostasis. Right Ans - true
Once science has "proven" a theory, it is no longer open to further testing.
Right Ans - false
In order to think critically, it is important to question the motives and
credentials of those making a claim. Right Ans - true
Water is liquid because of the strength of the hydrogen bonds that hold the
hydrogen of one water molecule and the oxygen of another together. Right
Ans - true
A protein is a molecule composed of a chain of fatty acids. Right Ans - false
A mixture is a molecule formed from atoms of different elements. Right Ans
- false
The shape of a protein determines its function. Right Ans - true
When an atom of an element contains a different number of neutrons than
usual, it is called a nucleotide. Right Ans - false
Oil and water do not mix because oils are polar and water is nonpolar.
Right Ans - false
Nucleotides are energy-carrying molecules. Right Ans - true
The three types of chemical bonds are covalent, ionic, and hydrogen. Right
Ans - true
Chemical bonds, which are found in molecules, occur because of electrical
interaction of protons. Right Ans - false
In an ionic bond, atoms share two electrons. Right Ans - false
The key feature of carbon that marks its importance as an organic substance is
its versatility in bonding. Right Ans - true
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