SAT Practicedb905986-c309-466c-a043-5b9a73c500dd

Practice one SAT question at a time

Questions come from the Bluebook question bank. Made by Iskaa303 (Iskander Madikhan).

A team investigating frugivorous (fruit-eating) birds found that their feeding patterns vary depending on where they live within their habitat range. At the geographic boundaries of their natural range, these birds become highly selective, choosing fruits that closely match their beak size to maximize energy intake while minimizing effort. However, this fruit-selection strategy doesn’t occur at elevation boundaries (the highest and lowest altitudes of their range). In these areas, other factors, such as territorial competition among species, have a stronger influence on feeding patterns.

Which choice best states the main purpose of the text?