Answer:
Taiben went on a walk in the forest. He saw a deer grazing in the grass, a bird eating a berry, a fish swimming in a creek, and a fox catching a rabbit.
a fish swimming in a creekis is an action that has both a biotic and an abiotic component involved.
a fox catching a rabbit is an action that involves only biotic components.
Explanation:
A fish swimming in a creek shows the interaction between a living organism and non-living organism which best describes an ecosystem while the relation between when fox catching a rabbit reflects an action that involves only living organism which could be term as a predator-prey contest