Before You Begin
Question #46024
The Question
In a stable, climax aquatic ecosystem (such as an open ocean), the pyramid of biomass is typically inverted. Which of the following statements regarding the ecological dynamics of this climax community is INCORRECT?
Options
- A.
The pyramid of energy remains strictly upright, reflecting a continuous unidirectional flow of energy and thermodynamic stability.
- B.
The standing crop of phytoplankton is lower than that of zooplankton at any given point in time.
- C.
The inverted biomass pyramid implies that the total energy assimilated by phytoplankton is lower than the energy assimilated by the zooplankton.
- D.
The community's energetic equilibrium is maintained by the rapid turnover rate and high reproductive potential of the primary producers.
Check Your Answer
Correct Answer
Step-by-Step Solution
Explanation
How the Examiner Thinks
Evolutionary_Exception
Tackle problems where standard rules evolve or change based on specific environmental constraints.
Concepts Behind This Question
Climax_Community|Standing_Crop|Aquatic_Biomass
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: Distinguishing between 'Standing Crop' (biomass at a specific moment) and 'Productivity' (energy assimilated over time).
The trap exploits the misconception that a lower standing crop (inverted biomass) equates to lower total energy assimilation.
Students must synthesize the concept of 'turnover rate' to understand how a small, rapidly dividing producer population can energetically sustain a larger consumer biomass without violating the 10% energy law.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Ecosystem - Class 12 |
| Concept | Ecological Succession Climax |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |