Question

17
which relationship below is an example of competition in an ecosystem?
a. squirrels nest in an oak tree, and insects live under the ground near the tree
b. rabbits eat the grasses and shrubs in a meadow, and wolves eat the rabbits in the meadow.
c. birds eat the insects that cattle disturb while grazing, and they occasionally ride on the cows’ backs
d. bald eagles and black bears fish from the same mountain lake.

Explanation:

Competition in an ecosystem occurs when different organisms vie for the same resources. In option D, bald eagles and black bears are both fishing from the same mountain lake, competing for the fish (a common resource). Option A shows species occupying different niches near a tree. Option B is a predator - prey relationship. Option C is a mutualistic or commensalistic relationship.

Answer:

D. Bald eagles and black bears fish from the same mountain lake