Question

In an ecosystem, the replacement of one new species for another because of direct competition for the same resources defines

Answer 1

this statement means that change is compulsory in the ecosystem in fact change is the law of nature if the old species which are ancient and primitive will not replace themselves so that the other species new and modern can come on their place they would be still nurse in the ecosystem so in an ecosystem the replacement of old species is very compulsory because of direct competition for the same resources