Intro to Cell Biology Final Exam
A proposed explanation for a set of observations. - ANS-Hypothesis
An explanation that is broader in scope than a hypothesis, generates new hypotheses, and is
supported by a large body of evidence. - ANS-Theory
Prokaryotes are classified as belonging to two different domains. What are the domains? -
ANS-Bacteria and Archaea
Your instructor asks you to look into your microscope to see a prokaryotic cell. You will be
looking for a cell that... - ANS-has a membrane
the scientific study of life - ANS-Biology
all the organisms living in an area - ANS-Community
Which of these sequences is a correct pathway of energy through an ecosystem? - ANS-plants
- insects - birds
To be scientifically valid, a hypothesis must be... - ANS-testable and falsifiable
Which organisms can obtain their food by eating other organisms? - ANS-Members of the
Kingdom Animalia
Which organisms are photosynthetic? - ANS-Members of the Kingdom Plantae
The mass number of an element can be easily approximated by adding together the number of
__________ in an atom of that element. - ANS-protons and neutrons
Which of the following is a trace element that is required by humans and other vertebrates? -
ANS-Iodine
What results from an unequal sharing of electrons between atoms? - ANS-polar covalent bond
How many electrons does an atom of sulfur have in its valence shell? - ANS-6 valence electrons
a substance that contains two or more elements chemically combined in a fixed proportion -
ANS-Compound
New properties that arise with each step upward in the hierarchy of life, owing to the
arrangement and interactions of parts as complexity increases. - ANS-emergent properties
, A logical, systematic approach to the solution of a scientific problem - ANS-Scientific Method
Information describing color, odor, shape, or some other physical characteristic - ANS-qualitative
data
Data associated with mathematical models and statistical techniques used to analyze spatial
location and association. - ANS-quantitative data
A type of logic in which generalizations are based on a large number of specific observations. -
ANS-inductive reasoning
reasoning in which a conclusion is reached by stating a general principle and then applying that
principle to a specific case (The sun rises every morning; therefore, the sun will rise on Tuesday
morning.) - ANS-deductive reasoning
In an experiment, the group that is exposed to the treatment, that is, to one version of the
independent variable. - ANS-experimental group
In an experiment, the group that is not exposed to the treatment; contrasts with the experimental
group and serves as a comparison for evaluating the effect of the treatment. - ANS-control
group
a test of the effect of a single variable by changing it while keeping all other variables the same -
ANS-controlled experiment
A natural process resulting in the evolution of organisms best adapted to the environment. -
ANS-Natural Selection
Selection by humans for breeding of useful traits from the natural variation among different
organisms - ANS-Artificial Selection
The most abundant compound in most living things is... - ANS-water
smallest unit of matter - ANS-atom
the number of protons in the nucleus of an atom - ANS-atomic number
The total mass of an atom, which is the mass in grams of 1 mole of the atom. - ANS-atomic
mass
Atoms of an element that have the same number of protons but different number of neutrons -
ANS-Isotopes
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