Question

Why does competition occur in ecosystems?

A. Competition never happens in ecosystems


B. Competition occurs only within populations


C. Competition happens because resources are limited.


D. Competition happens only over food

Answer 1

Competition occurs when populations fight each other for something. Such as male deer fighting over a female. Or alligators fighting over who's going to eat the tiny animal. Competition happens only with populations of a certain species. An animal can't compete with another species, that'd just be a weird T.V show.

Your answer is B.

Answer 2

Option C. Competition happens because resources are limited.

Step-by-step explanation:

When resources are limited in an ecosystem, the species compete with each other to come out as best among all.

As per the theory of natural selection, Darwin proposed that it is always the fittest of all that survive. By fittest he means the ones who are capable to compete and come out as the strongest among all to survive in a given ecosystem.

For Example - Male compete among themselves to attract the female. This is known as sexual selection.

Hence, option C is correct.