NEET 2019
- Exam
- NEET
- Year
- 2019
- Subject
- Botany
- Chapter
- Ecosystem
NEET 2019 · Botany · Ecosystem
Which of the following ecological pyramids is generally inverted?
Which of the following ecological pyramids is generally inverted?
Options
- APyramid of numbers in grassland
- BPyramid of energy
- CPyramid of biomass in a forest
- DPyramid of biomass in a sea
Correct answer
D. Pyramid of biomass in a sea
Step-by-step solution
The amount of living organic matter is called biomass . And the pyramid of biomass is graphical representation of biomass per unit area at different tropic levels with producer at the base and carnivorous at the top .
The pyramid of biomass in ocean inverted because:
(i) Food chain in the ocean - {Phytoplankton zooplankton predatory fish.}
(ii) the biomass of zooplankton is greater than phytoplankton (the producer) because of their small size and low weight. The predatory fish is much larger than zooplankton.
(iii) the producer in ocean or aquatic ecosystem producers are phytoplankton have short life span and turn over and have lower mass than zooplankton.
(iv) the biomass of tropic level depends on the longevity of member
The pyramid of biomass in ocean inverted because:
(i) Food chain in the ocean - {Phytoplankton zooplankton predatory fish.}
(ii) the biomass of zooplankton is greater than phytoplankton (the producer) because of their small size and low weight. The predatory fish is much larger than zooplankton.
(iii) the producer in ocean or aquatic ecosystem producers are phytoplankton have short life span and turn over and have lower mass than zooplankton.
(iv) the biomass of tropic level depends on the longevity of member