define the following terms ,giving one example in each case : ecological niche ,habitat and food chain.
Answers
economical niche : an economical niche refers to the interrelationship of a species with all the biotic and abiotic factors affecting it. This definition of niche though has changed over time. ... In 1927, Charles Sutherland Elton regarded niche to be equivalent to the position of a species in a trophic web.
habitat:the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche.
food chain: A food chain is a linear network of links in a food web starting from producer organisms and ending at an apex predator species, detritivores, or decomposer species. A food chain also shows how organisms are related to each other by the food they eat. Each level of a food chain represents a different trophic level.