Which of the Following is NOT an Example of a Predator-Prey

Question

Which of the following is NOT an example of a predator-prey relationship?
A) A mountain lion eating a deer
B) A deer eating grass
C) A fish eating plankton
D) An owl eating a mouse
E) All of these are examples of predator-prey interactions.

Accepted Answer

A predator-prey relationship involves one organism (the predator) feeding on another organism (the prey). In the case of a deer eating grass, the deer (herbivore) is consuming a plant, not preying on another animal, making it different from the other examples where animals prey on other animals.