Dwarf mistletoes are flowering plants that grow on certain forest trees. They obtain nutrients and water from the vascular tissues of the trees. The trees derive no known benefits from the dwarf mistletoes, nor are they negatively affected by this interaction. Which of the following best describes the interactions between dwarf mistletoes and trees?
A) mutualism
B) commensalism
C) competition
D) facilitation

Question

Quizplus · Accepted Answer

The interaction between dwarf mistletoes and trees is an example of commensalism because only one organism, the dwarf mistletoes, benefit from the interaction, while the trees are not affected positively or negatively.

Dwarf Mistletoes Are Flowering Plants That Grow on Certain Forest