What is species, population, community and niches

This is biology question , anyone please help me! explain to me briefly. Thank you.

Species = a group of organisms that is capable of breeding and producing offspring.

Population = all the organisms belonging to the same species that inhabit a specific environment or habitat.

Community = groups of organisms of different species that interact with each other in a given habitat.

Niche = the specific role/"job" in an ecosystem that a species occupies