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BIO 123 EXAM QUESTIONS AND 100% CORRECT ANSWERS
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BIO 123 EXAM QUESTIONS AND 100%CORRECT ANSWERS
Life is Photosynthetic - ANSWER Which of the following would be explainable due to
something other than the descent of living things from one common ancestor?
Gene Theory - ANSWER Provides insight into why various species differ from one
another, predisposition to diseases, and the production of drugs for diseases
Experimental Variable - ANSWER What is deliberately changed changed in the scientific
experiment?
Control Group ANSWER If an experiment were being done, what would be used for
comparison to see if the treatment worked or not?
Nutrient recycling from dead organisms would increase. - ANSWER If all decomposers
were taken out of an ecosystem, what would have happened?
Domain - ANSWER You discover a new form of life that has the following features: no
nuclei to house its DNA, no mitochondria, cell walls that are rigid, and bacterial flagella.
To which taxonomic level does this new form of life belong?
Evolution - ANSWER What process is responsible for the unity and diversity of life on
Earth?
Animals - ANSWER To what kingdom do humans belong?
Protists - ANSWER You are looking at a drop of pond water under the microscope and
you see a single-celled organism that has a nucleus and photosynthetic apparatus. What
,kingdom does it belong to?
Creating too many seagrass beds - ANSWER Humans have damaged the biosphere in all
of the following ways except:
a. overharvesting coral from reefs
b. depositing eroded sediments into the water
c. overharvesting forests
d. over-developing seagrass beds
e. allowing too much fertilizer to runoff
Domain, Kingdom, Phylum - ANWER Which of the following lists three taxonomic levels
in order from most to least inclusive
Observation, Hypothesis, Experiment, Conclusion - ANWER Which is the scientific
method in correct order?
Reproduction by sexual means - ANSWER All of the following characteristics are done
by at least some living organisms, but which is restricted to only some organisms?
a. response to stimuli
b. adaptation to habitat
c. reproduction by sexual means
d. regulation of internal environment
e. acquisition of energy
Hypothesis - ANSWER What is the term for a possible explanation for a natural event?
Adaptation - ANSWER An example of ___(blank)___ is flat leaves in plants that are
capable of providing more surface area for light exposure.
Population - ANSWER All of the following levels of organization describe an individual
organism except ___(blank)__.
, a. organ
b. cell
c. tissue
d. organ system
e. population
Scientific Law - ANSWER All of the following are steps in the scientific method except
___(blank)__.
a. conclusion
b. hypothesis
c. observation
d. experiment
e. scientific law
Genus - ANSWER Which of the following levels of taxonomy comprises the fewest
number of organisms?
Increase the number of protons - ANSWER Which of the following would occur that
could cause an atom to become a different element?
a. increase the number of neutrons
b. increase the number of electrons
c. increase the number of protons
d. decrease the number of neutrons
e. decrease the number of electrons
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