Q3 of 67 Page 98

Productivity is the rate of production of biomass expressed in terms of:

i. (kcal m–3) yr–1


ii. g–2 yr–1


iii. g–1 yr–1


iv. (kcal m–2) yr–1


Productivity is the amount of biological mass produced in a given ecosystem. It expressed in units of mass per unit volume) per unit time. Here in the given options, the correct units which are expressed are g–2 yr–1 and (kcal m–2) yr–1. The rest of the given options are incorrect.

More from this chapter

All 67 →
1

Decomposers like fungi and bacteria are:

i. autotrophs


ii. heterotrophs


iii. saprotrophs


iv. chemo-autotrophs.


Choose the correct answer:


 2

The process of mineralisation by microorganisms helps in the release of:

 4

An inverted pyramid of biomass can be found in which ecosystem?

 5

Which of the following is not a producer?