Q. Large unit of land having different types of plants and animals

 1550  209 Delhi UMET/DPMTDelhi UMET/DPMT 2007Organisms and Populations Report Error

Solution:

Biome is the major terrestrial ecosystem or distinctive terrestrial areas with their group of climax plants and associated animals.
It is the largest terrestrial community. Uniform vegetation consists of same vegetation.
Ecosystem includes both the organisms and the non-living environment.
Niche is the ultimate distributional unit, within which each species is held by its structural and instinctive limitations.