The Question is from NEET guide , and it was created by the author D VINOD

Question

Find the correct statement

D VINOD · Accepted Answer

## CORE INFORMATION
✓ **Answer**: B
## CONCEPT FRAMEWORK
	**Primary Concept**: Energy flow in ecosystems.
	**Related Topics**: Decomposition, Photosynthesis, Food Chains, Biomass.
	**Prerequisites**: Basic understanding of ecological processes and energy transfer.
## SOLUTION PATHWAY
**Given Information**:
	Four statements about ecological processes.
	Goal is to identify the correct statement.
**Method & Steps**:
	1. Analyze each statement based on ecological principles.
		Reasoning: Evaluate each statement against known biological processes and facts.
	2.  Evaluate statement A: Low temperature and aerobic conditions inhibit decomposition.
		Working: Aerobic conditions favor decomposition and low temperatures inhibit it. So, the statement is partially correct but not fully accurate.
		Key Point: Decomposition is a complex process and both temperature and availability of oxygen influence it.
	3. Evaluate statement B: Plants capture only 2-10%, of the PAR and sustain the entire living world.
		Working: This is a known fact in ecology. Plants use solar energy, converting a small percentage into chemical energy via photosynthesis, which forms the basis of most food chains.
		Key Point: PAR refers to photosynthetically active radiation, which is the portion of the light spectrum that plants use for photosynthesis.
	4. Evaluate statement C: In aquatic and terrestrial ecosystems the GFC is the major conduit for energy flow.
		Working: In aquatic ecosystems, the detritus food chain is the major conduit for energy flow, not the grazing food chain (GFC). In terrestrial ecosystems, the GFC is more important, but not always the major pathway.
		Key Point: GFC (Grazing Food Chain) and DFC (Detritus Food Chain) are the two major pathways of energy flow. The dominant pathway depends on the specific ecosystem.
	5.  Evaluate statement D: Measurement of biomass in terms of fresh weight is more accurate than dry weight.
		Working: Dry weight is more accurate because it removes the variation caused by water content, which varies greatly. Fresh weight includes water content.
		Key Point: Dry weight is the standard in scientific studies for biomass measurement.
	6. Final Step: Select the correct statement.
		Result: Statement B is the only correct statement.
		Verification: Based on ecological principles, statement B is the only one that accurately reflects known facts.
 ## OPTION ANALYSIS
[A] :x: Incorrect. Aerobic conditions promote, not inhibit, decomposition. Low temperature does inhibit decomposition.
[B] ✓: Correct. Plants typically capture a small percentage of PAR, which sustains the food chains.
[C] :x: Incorrect. The detritus food chain is also very important in many ecosystems, especially aquatic ones.
[D] :x: Incorrect. Dry weight is more accurate than fresh weight due to variations in water content.
 ## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing aerobic and anaerobic conditions with respect to decomposition: Aerobic conditions favor decomposition by organisms.
		2. Assuming GFC is the only major conduit for energy flow: The detritus food chain is also a vital part of energy flow, particularly in aquatic systems.
	**Quick Tips**:
		1. Remember that photosynthesis efficiency is typically low, thus only a small percentage of solar energy is captured by plants.
		2. Dry weight is a standard measure in science for biomass, as it removes inconsistencies caused by water content.

D VINOD · Answer

Low temperature and aerobic conditions inhibit decomposition

D VINOD · Answer

The correct Option is "Plants capture only 2-10%, of the PAR and sustain the entire living world"

D VINOD · Answer

In aquatic and terrestrial ecosystems the GFC is the major conduit for energy flow

D VINOD · Answer

Measurement of biomass in terms of fresh weight is more accurate than dry weight

NEET Questions

Select Subject

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

NEET Subjects

Our Bots

Company