This category explores the breakdown of organic matter and the factors that affect decomposition rates in ecosystems.
The availability of oxygen significantly affects decomposition, as it is required for microbial activity.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Decomposition - Process and Factors
Decomposers break down dead organic matter and recycle essential nutrients back into the ecosystem.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Decomposition - Process and Factors
Standing crop refers to the total biomass of living organisms present in a particular trophic level at a specific time.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Decomposition - Process and Factors
Detritivores feed on dead organic matter, not living plants.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Decomposition - Process and Factors
Decomposition is slower in dry environments because moisture is essential for microbial activity.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Decomposition - Process and Factors
Humification leads to the accumulation of humus, a dark-colored amorphous substance that is resistant to microbial degradation.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Decomposition - Process and Factors
Humification leads to the accumulation of humus, a dark-colored organic substance in soil that improves fertility.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Decomposition - Process and Factors
Denitrification is the process by which nitrates are converted back into nitrogen gas by bacteria, releasing it into the atmosphere.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Decomposition - Process and Factors
Decomposers break down dead organic matter into simpler inorganic nutrients, making them available for uptake by producers.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Decomposition - Process and Factors
Food webs include decomposers, which play a crucial role in recycling nutrients.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Decomposition - Process and Factors
Plants cannot absorb nitrogen gas directly from the atmosphere; they depend on nitrogen-fixing bacteria.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Decomposition - Process and Factors
Decomposers do not perform photosynthesis; they break down dead organic matter and recycle nutrients.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Decomposition - Process and Factors
