A) biome
B) ecotone
C) niche
D) photiczone
Correct Answer: B
Solution :
The zone of transition between two different communities presenting a situation of overlapping is known as ecotone. During the process of succession a complex of several types of communities, some in climax stage and other in different stages of succession maintained under more or less similar climatic conditions is known as biome, Ecological niche of an organism includes the physical space occupied by it, its functional role in the community and the condition of existence. Photic zone is the region of limnetic zone in aquatic habitat, to which light can penetrate. Depending upon clearity of water it has a depth of 20 200m.
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