Among American Warblers,several Different Species Often Live in the Same

Among American warblers,several different species often live in the same spruce trees and eat caterpillars.However,each species reproduces at a slightly different time of year and each species also forage at different areas within the tree canopy.These differences in foraging behaviors and reproduction is an example of

A) competitive exclusion.
B) character displacement.
C) resource partitioning.
D) mutualism.
E) competitive inclusion.