CLEP BIOLOGY EXAM STUDY GUIDE- Complete Questions & Answers (100% Correct)

CLEP BIOLOGY EXAM STUDY GUIDE- Complete Questions & Answers (100% Correct) CLEP BIOLOGY EXAM STUDY GUIDE- Complete Questions & Answers (100% Correct) In which of the following ways do social insects benefit most from having several types or castes within the species? - ANSWER - The specialized structure of each caste permits division of labor and greater efficiency The greatest diversity of structure and of methods of locomotion is exhibited in the individuals of - ANSWER - a phylum Of the following, which is an example of a mutualistic relationship? - ANSWER - The protozoan Trichonympha digesting wood in the gut of a termite Evidence that multicellular green plants may have evolved from green algae is best supported by the fact that in both - ANSWER - chlorophylls a and b are photosynthetic pigments All of the following statements concerning the light-capturing reactions of photosynthesis are true EXCEPT - ANSWER - If captured, some of the energy of the excited electrons is used to split carbon dioxide into carbon and oxygen. Which of the following statements best explains the hypothesis that the development of sexual reproduction has resulted in acceleration of the rate of evolution? - ANSWER - Sexual reproduction is more likely to result in genetic recombination than is asexual reproduction. 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. - ANSWER - The fibers of a muscle have varying thresholds for response