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I Bio 182 Exam 4: Post-Course Practice Exam Questions And Answers
f a bird song promotes an individual's ability to attract a mate and reproduce, then the song has a(n) _____ function. - ANSWERAdaptive 
 
Many female birds establish a pair bond with a single male with whom they build a nest and rear young. Many of those females, however, also copulate with other males outside the pair bond; the young they raise are fathered by more than one male. If we want to understand how this behavior originated and how it may have changed over time, we want to understa...