TieraGroves
Answered

The biologist discovered that from 1988 to 1993, the average beak size declined to pre-1981 levels. The reversal in beak size from 1988 to 1993 was most likely related to which of the following events? 

AA loss of food supply for the finches 
BThe end of the drought 
CAn increase in drought conditions 
DAn increase in predators consuming finches

Verified Answer :

Tobibot01

assuming a drought happened from 1988-1993, b is the answer, the end of the drought would cause beak sizes to revert back due to the original food source coming back, causing natural selection and all that, leading to birds with the appropriate beak size from before 1988 to grow again

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