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CLEP Biology ACTUAL Exam Questions
And Answers 100% Pass
(E) The specialized structure of each caste permits division of labor and greater efficiency. -
ANS 1. In which of the following ways do social insects benefit most from having several
types or castes within the species?
(A) Each colony is able to include a large number of individuals
(B) The secretions or odors produced by the protective caste are an effective defense
(C) The division of the species into castes ensures the survival of the fittest
(D) Large numbers of the worker caste can migrate to start new colonies
(E) The specialized structure of each caste permits division of labor and greater efficiency.
(E) a phylum - ANS 2. The greatest diversity of structure and of methods of locomotion is
exhibited in the individuals of ______
(A) a class
(B) a family
(C) an order
(D) a species
(E) a phylum
(A) The protozoan Trichonympha digesting wood in the gut of a termite - ANS 3. Of the
following, which is an example of a mutualistic relationship?
(A) The protozoan Trichonympha digesting wood in the gut of a termite
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(B) The sporozoan Plasmodium reproducing in human blood cells and liberating toxins into the
human body
(C) Two species of Paramecium deriving food from a common laboratory culture
(D) Rabbits being eaten by foxes
(E) Humans inadvertently providing food for cockroaches
(C) chlorophylls a and b are photosynthetic pigments - ANS 4. Evidence that multicellular
green plants may have evolved from green algae is best supported by the fact that in both
(A) the gametophyte generation is dominant
(B) the sporophyte generation is dominant
(C) chlorophylls a and b are photosynthetic pigments
(D) xylem vessels are pitted and spiraled
(E) male gametes are nonflagellated
(D) If captured, some of the energy of the excited electrons is used to split carbon dioxide into
carbon and oxygen. - ANS 5. All of the following statements concerning the light-capturing
reactions of photosynthesis are true EXCEPT
(A) An initial event is the excitation of electrons in chlorophyll by light energy.
(B) The excited electrons are raised to a higher energy level.
(C) If not captured, the excited electrons drop back to their initial energy levels.
(D) If captured, some of the energy of the excited electrons is used to split carbon dioxide into
carbon and oxygen.
(E) Light is absorbed by pigments that are embedded in membranes.
(E) Sexual reproduction is more likely to result in genetic recombination than is asexual
reproduction. - ANS 6. Which of the following statements best explains the hypothesis that
the development of sexual reproduction has resulted in acceleration of the rate of evolution?
(A) Mutations are more likely to occur in spermatogenesis and oogenesis than in mitotically
dividing cells.
(B) Sexual reproduction results in more offspring than does asexual reproduction.
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(C) Those members of a species that are best adapted to their environment are most likely to
be successful in sexual reproduction.
(D) Mutations usually do not occur in the production of spores or in cells dividing by fission.
(E) Sexual reproduction is more likely to result in genetic recombination than is asexual
reproduction.
(E) The fibers of a muscle have varying thresholds for response. - ANS 7. A frog skeletal
muscle contracts in response to an electrical stimulus. Increase of the stimulus intensity by 50
percent will increase the strength of response nearly 50 percent. If the intensity is again
increased 50 percent, the response will increase only about another 25 percent. Further
increase in the stimulus intensity produces no further increase in response. The observations
above are best explained by which of the following?
(A) A muscle functions with an all-or-none mechanism.
(B) Muscle-fiber sarcolemma is electrically resistant.
(C) The fibers of a muscle do not all contract at the same rate.
(D) The fibers of a muscle fatigue at varying rates.
(E) The fibers of a muscle have varying thresholds for response.
(A) Proteins - ANS 8. Nitrogen-containing waste products are excreted as the result of the
metabolism of which of the following?
(A) Proteins
(B) Fats
(C) Simple sugars
(D) Starch
(E) Cellulose
(C) these regions were once thickly vegetated - ANS 9. Deposits of coal in Greenland and the
Antarctic indicate that
(A) these regions once contained numerous mollusks that deposited carbohydrates in their
shells
CLEP Biology ACTUAL Exam Questions
And Answers 100% Pass
(E) The specialized structure of each caste permits division of labor and greater efficiency. -
ANS 1. In which of the following ways do social insects benefit most from having several
types or castes within the species?
(A) Each colony is able to include a large number of individuals
(B) The secretions or odors produced by the protective caste are an effective defense
(C) The division of the species into castes ensures the survival of the fittest
(D) Large numbers of the worker caste can migrate to start new colonies
(E) The specialized structure of each caste permits division of labor and greater efficiency.
(E) a phylum - ANS 2. The greatest diversity of structure and of methods of locomotion is
exhibited in the individuals of ______
(A) a class
(B) a family
(C) an order
(D) a species
(E) a phylum
(A) The protozoan Trichonympha digesting wood in the gut of a termite - ANS 3. Of the
following, which is an example of a mutualistic relationship?
(A) The protozoan Trichonympha digesting wood in the gut of a termite
, ©EVERLY 2025 ALL RIGHTS RESERVED
(B) The sporozoan Plasmodium reproducing in human blood cells and liberating toxins into the
human body
(C) Two species of Paramecium deriving food from a common laboratory culture
(D) Rabbits being eaten by foxes
(E) Humans inadvertently providing food for cockroaches
(C) chlorophylls a and b are photosynthetic pigments - ANS 4. Evidence that multicellular
green plants may have evolved from green algae is best supported by the fact that in both
(A) the gametophyte generation is dominant
(B) the sporophyte generation is dominant
(C) chlorophylls a and b are photosynthetic pigments
(D) xylem vessels are pitted and spiraled
(E) male gametes are nonflagellated
(D) If captured, some of the energy of the excited electrons is used to split carbon dioxide into
carbon and oxygen. - ANS 5. All of the following statements concerning the light-capturing
reactions of photosynthesis are true EXCEPT
(A) An initial event is the excitation of electrons in chlorophyll by light energy.
(B) The excited electrons are raised to a higher energy level.
(C) If not captured, the excited electrons drop back to their initial energy levels.
(D) If captured, some of the energy of the excited electrons is used to split carbon dioxide into
carbon and oxygen.
(E) Light is absorbed by pigments that are embedded in membranes.
(E) Sexual reproduction is more likely to result in genetic recombination than is asexual
reproduction. - ANS 6. Which of the following statements best explains the hypothesis that
the development of sexual reproduction has resulted in acceleration of the rate of evolution?
(A) Mutations are more likely to occur in spermatogenesis and oogenesis than in mitotically
dividing cells.
(B) Sexual reproduction results in more offspring than does asexual reproduction.
, ©EVERLY 2025 ALL RIGHTS RESERVED
(C) Those members of a species that are best adapted to their environment are most likely to
be successful in sexual reproduction.
(D) Mutations usually do not occur in the production of spores or in cells dividing by fission.
(E) Sexual reproduction is more likely to result in genetic recombination than is asexual
reproduction.
(E) The fibers of a muscle have varying thresholds for response. - ANS 7. A frog skeletal
muscle contracts in response to an electrical stimulus. Increase of the stimulus intensity by 50
percent will increase the strength of response nearly 50 percent. If the intensity is again
increased 50 percent, the response will increase only about another 25 percent. Further
increase in the stimulus intensity produces no further increase in response. The observations
above are best explained by which of the following?
(A) A muscle functions with an all-or-none mechanism.
(B) Muscle-fiber sarcolemma is electrically resistant.
(C) The fibers of a muscle do not all contract at the same rate.
(D) The fibers of a muscle fatigue at varying rates.
(E) The fibers of a muscle have varying thresholds for response.
(A) Proteins - ANS 8. Nitrogen-containing waste products are excreted as the result of the
metabolism of which of the following?
(A) Proteins
(B) Fats
(C) Simple sugars
(D) Starch
(E) Cellulose
(C) these regions were once thickly vegetated - ANS 9. Deposits of coal in Greenland and the
Antarctic indicate that
(A) these regions once contained numerous mollusks that deposited carbohydrates in their
shells
