GPP utilizes ___________ of incident radiation

1. 1 - 5%

2. 2 - 10%

3. 0.8 - 4%

4. 1.6 - 8%

Which of the following is not correctly matched?

The given diagram represents a pyramid of biomass in a particular ecosystem, where the biomass of primary consumers (PC) is greater than that of primary producers (PP).
Based on this, identify the correct nature of the pyramid of number and pyramid of energy in the same ecosystem.

1.  Inverted, upright

2.  Upright, upright

3.  Upright, inverted

4.  Spindle, upright

The ecological pyramid of numbers in pond ecosystem is :-

1. Inverted

2. Upright

3. May be upright or inverted

4. First upright then inverted

Standing crop is: 

(i) Amount of detritus in unit area
(ii) Number of living organisms in unit area
(iii) Amount of nutrients such as carbon, nitrogen, and calcium in unit area
(iv) Biomass in unit area

1. (i) and (iv)

2. (i) and (iii)

3. (ii) and (iv)

4. only (iv)

Find the odd one out with respect to functional component of ecosystem

1. Productivity

2. Stratification

3. Decomposition

4. Nutrient cycling

The secondary productivity means

1. Rate of increase in the biomass of autotrophs.

2. Rate of increase in the biomass of heterotrophs.

3. The rate at which the organic molecules are used up by an autotroph.

4. The rate at which inorganic molecules are used up by an autotroph.

How many statements are correct about decomposition?

1. One 

2. Two

3.  Three 

4. Four

Mark the odd one with respect to shape of ecological pyramids.

1. Pyramid of energy.

2. Pyramid of number in grassland ecosystem.

3. Pyramid of biomass in aquatic ecosystem.

4. Pyramid of biomass in terrestrial ecosystem.