Skip to content
ZoologyNEET 2025Structure, productivity and decomposition

Ecosystem

Which of the following is the unit of productivity of an ecosystem?

  1. A.g m−2\mathrm{g\,m^{-2}}
  2. B.kcal m−2\mathrm{kcal\,m^{-2}}
  3. C.kcal m−3\mathrm{kcal\,m^{-3}}
  4. D.(kcal m−2) yr−1\mathrm{(kcal\,m^{-2})\,yr^{-1}}✓

Solution

Productivity is the rate of biomass production per unit area per unit time, expressed in g m−2 yr−1\mathrm{g\,m^{-2}\,yr^{-1}} or (kcal m−2) yr−1\mathrm{(kcal\,m^{-2})\,yr^{-1}}.

Save for spaced revision (free account)

More from this chapter in past papers

From Botany › Ecosystem › Structure, productivity and decomposition — lectures, notes and every past question on it.

Last revised . Found a mistake? Tell us — corrections are the fastest thing we act on.

ShareWhatsAppTelegram