The largest of the four ecological levels is the:
AWhole biomes
BLone organisms
CSmall groups
DSingle pairs
Answer & Solution
Correct answer: A. Whole biomes
1. The levels run in order of increasing scale.
2. The single organism is the smallest.
3. The biome is the largest.
_Source: NCERT Class 12 Biology, Chapter 13, Organisms and Populations._
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