Q. What is the terrestrial part of the Biosphere called?
Answer: Biome
Notes: A natural ecosystem is an assemblage of plants and animals which functions as a unit and is capable of maintaining its identity. There are two main categories of ecosystems: 1) Terrestrial ecosystem or Biomes and 2) Aquatic ecosystem.
The terrestrial part of the biosphere is divisible into enormous regions called biomes.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 60 in Physical Geography - World Soils, Major Biomes in above course in App.