A hummingbird that pollinates morning glory flowers and nests in the crotch of an apple tree.The apple tree is not harmed or helped by the hummingbird.The relationship between the hummingbird and the apple tree is a
A) mutualism.
B) commensalism.
C) competition.
D) parasitism.
E) predation.

Question

Quizplus · Accepted Answer

This is an example of commensalism as the hummingbird benefits from the flowers of the morning glory and the apple tree offers a nesting site for the hummingbird, but the apple tree is not affected positively or negatively by the presence of the hummingbird.

A Hummingbird That Pollinates Morning Glory Flowers and Nests in the Crotch