Explain why no two organisms can occupy the same niche at the same
time.

The competitive exclusion principle, also called Gause's Principle, states that when two species compete for exactly the same resources (thus, they occupy the same niche), one is likely to be more successful. ... This principle means: no two species can sustain coexistence if they occupy the same niche.

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above

the answer is c on e2020, bud.