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Question: Answered & Verified by Expert
Arrange the following ecosystems in the decreasing order of their mean net primary productivity (tons/hectare/year).

I. Tropical deciduous forest
II. Temperate coniferous forest
III. Tropical rain forests
IV. Temperate deciduous forest
V. Desert scrub
BiologyEcosystemNEET
Options:
  • A III > I > IV > II > V
  • B II > IV > I > III > V
  • C III > I > II > IV > V
  • D IV > II > III > I > V
Solution:
2278 Upvotes Verified Answer
The correct answer is: III > I > IV > II > V
Net primary productivity is the quantity of biomass produced by plants per unit area per unit time after all respiratory losses. The productivity of an ecosystem depends on temperature and annual precipitation. The tropical rain forest is the most productive terrestrial ecosystem.

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