Question

what happens during competition in an ecosystem?
one organism eats another for food.
a parasite lives inside a larger animal.
organisms struggle to use the same limited resource.

Explanation:

Competition in an ecosystem occurs when multiple organisms need the same scarce resources (like food, water, or space) and must compete to access them. The other options describe predation (one organism eating another) and parasitism (a parasite living in a larger organism), which are different ecological interactions.

Answer:

Organisms struggle to use the same limited resource.