Decomposers like fungi and bacteria are
(i) autotrophs (ii) heterotrophs
(iii) saprotrophs (iv) chemo-autotrophs
Choose the correct answer
1. (i) and (iii)
2. (i) and (iv)
3. (ii) and (iii)
4. (i) and (ii)
Q.2 The process of mineralization by microorganisms helps in the release of
|1.||inorganic nutrients from the humus|
|2.||both organic and inorganic nutrients from detritus|
|3.||organic nutrients from the humus|
|4.||inorganic nutrients from detritus and formation of humus.|
Productivity is the rate of production of biomass expressed in
3. (ii) and (iv)
4. (i) and (iii)
An inverted pyramid of biomass can be found in which the ecosystem?
Which of the following is not a producer?
Which of the following ecosystems is most productive in terms of net primary production?
2. Tropical rain forests
Pyramid of numbers is
1. Always upright
2. Always inverted
3. Either upright or inverted
4. Neither upright nor inverted
Approximately how much of the solar energy that falls on the leaves of the plant is converted to chemical energy by photosynthesis?
1. Less than 1%
Among the following where do you think the process of decomposition would be the fastest?
1. Tropical rain forest
2. the Antarctic
3. Dry arid region
4. Alpine region
How much of the net primary productivity of a terrestrial ecosystem is eaten and digested by herbivores?