CUET UG Biology Booster Test 3-Ecosystem Stability and Function -

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CUET UG Biology Booster Test 3-Ecosystem Stability and Function

⏱️ 30 Minutes

❓ 20 Questions

📌 Answers are locked once submitted — results and explanations appear at the end.

CUET UG Biology Booster Test 3-Ecosystem Stability and Function

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QUESTION 1 OF 20

If a newly discovered ecosystem exhibits massive fluctuations in its annual biomass yield despite a constant climate, what does this analytically suggest about its biological community?

Answer Review

1 If a newly discovered ecosystem exhibits massive fluctuations in its annual biomass yield despite a constant climate, what does this analytically suggest about its biological community?

A It has reached its climax stage

B It likely has low species richness and poor stability

C It is highly resistant to alien invasions

D It is demonstrating high resilience

💡 Short Explanation

High variability = Low stability. Tilman's experiments show stability is positively correlated with species richness. Conversely, low species richness leads to high year-to-year variation.

✅ Correct Answer Explanation

Ecological stability is characterized by minimal year-to-year fluctuations in biomass. Massive fluctuations, as observed in this ecosystem, indicate a lack of functional redundancy and low species richness, making the system inherently unstable.

❓ Why Other Options Are Incorrect

Option A → Climax communities are generally stable, not characterized by massive fluctuations.
Option C → Low stability/low richness systems are typically susceptible, not resistant, to invasions.
Option D → High resilience implies a quick recovery to a stable state, not persistent massive fluctuation.

🎯 Strategy

Used: Elimination

Application: Identified that fluctuations are a sign of instability, leaving B as the only logical conclusion.

Final Logic: High fluctuation = Low stability = Low richness.

🧠 Memory Trick

"Fluctuation = Frustration" (Instability).

📚 Biodiversity and Conservation – Topic: Biodiversity and Stability

2 Ecologists assessing a heavily degraded wetland note it fails to satisfy the criteria for a stable community. Which of the following observations would NOT lead to this conclusion?

A The rapid spread of introduced water hyacinth

B Consistent resistance to an invasive weed

C Drastic collapse in productivity during a mild drought

D High year-to-year variation in total biomass

💡 Short Explanation

Stable communities are resistant to invasions. Resistance is a positive trait, not a indicator of degradation. The question asks for the "EXCEPT" scenario.

✅ Correct Answer Explanation

A stable community resists invasions (Option C). If a wetland is resistant to invasive weeds, it is displaying a trait of stability, which contradicts the conclusion that the wetland is "heavily degraded." Therefore, this observation would not lead to the conclusion that the wetland is unstable.

❓ Why Other Options Are Incorrect

Option A → Vulnerability to invasive weeds is a sign of instability.
Option C → Productivity collapse during minor stress is a sign of low resilience/instability.
Option D → High year-to-year variation is the primary indicator of instability.

🎯 Strategy

Used: Odd One Out

Application: A, C, and D describe signs of degradation, whereas B describes a sign of a healthy/stable ecosystem.

Final Logic: Resistance = Stable; the question asks what does NOT prove instability.

🧠 Memory Trick

"Resistance is a Resistance to degradation."

📚 Biodiversity and Conservation – Topic: Biodiversity and Stability

3 In Tilman's experiments, what is the ecological mechanism that most likely explains why higher species diversity led to less year-to-year variation in biomass?

A Increased biodiversity contributed to higher productivity and functional compensation

B High diversity inevitably increases the rate of extinction

C More species guarantee the establishment of invasive aliens

D Diverse plots suppress all primary production

💡 Short Explanation

High diversity = Functional compensation. If one species fails, another compensates. This buffers total biomass against variation.

✅ Correct Answer Explanation

Higher species richness provides functional redundancy. When some species are negatively affected by environmental changes, others may thrive, maintaining the overall productivity of the ecosystem. This compensation mechanism is the key to stability in Tilman's findings.

❓ Why Other Options Are Incorrect

Option B → Diversity generally decreases, not increases, extinction risks.
Option C → Diversity decreases the success of invasive aliens.
Option D → Diversity boosts, not suppresses, primary production.

🎯 Strategy

Used: Contextual/Tonal Matching

Application: Identifying the core ecological mechanism (functional redundancy/compensation) described by Tilman.

Final Logic: Diversity = Compensation = Stability.

🧠 Memory Trick

"Diversity = Buffer."

📚 Biodiversity and Conservation – Topic: Biodiversity and Stability

4 Arrange the following concepts sequentially to show the relationship between biodiversity and ecosystem functioning as demonstrated by Tilman:
1. Higher total productivity
2. Increase in species richness in an outdoor plot
3. Reduced year-to-year biomass variation

A 1, 2, 3

B 2, 3, 1

C 3, 2, 1

D 2, 1, 3

💡 Short Explanation

Enrichment (2) is the cause. Stability (3) and Output (1) are the effects. Sequential logic is based on the experimental results.

✅ Correct Answer Explanation

Tilman's outdoor experiments began by increasing species richness (2). The observed outcomes were that these plots achieved higher total productivity (1) and demonstrated reduced year-to-year biomass variation (3). The logical flow of cause-effect is 2 -> 3/1.

❓ Why Other Options Are Incorrect

Options A, C, and D misrepresent the causality established by the experimental manipulation.

🎯 Strategy

Used: Substitution

Application: Following the experimental design: Independent variable (richness) -> Dependent variables (variation/productivity).

Final Logic: Richness causes the observed stability and productivity.

🧠 Memory Trick

"Richness starts, stability follows."

📚 Biodiversity and Conservation – Topic: Biodiversity and Stability

5 Analyze the 'rivet popper hypothesis' and identify the correct deductive statements:
I. The hypothesis proves that every single species is equally crucial for immediate ecosystem survival.
II. It illustrates the cumulative danger of species loss over time.
III. It emphasizes the disproportionate impact of losing keystone species.

A II and III only

B I and II only

C I and III only

D I, II, and III

💡 Short Explanation

I is false: Not all species are "equally" crucial (e.g., wing rivets vs. seat rivets). II is true: Cumulative loss weakens the system. III is true: Key rivets (keystone species) cause immediate critical failure.

✅ Correct Answer Explanation

Statement I is incorrect because the hypothesis specifically states that removing some rivets (species) initially has a negligible effect, while others are critical. Statement II and III correctly identify the cumulative risk and the specific danger posed by the loss of keystone species.

❓ Why Other Options Are Incorrect

Option B, C, and D are incorrect because they include Statement I, which contradicts the analogy.

🎯 Strategy

Used: Elimination

Application: Eliminating Statement I based on the "wing vs. seat" distinction in the analogy.

Final Logic: Key species = High impact; All species = Not equal weight.

🧠 Memory Trick

"Not equal, but cumulative."

📚 Biodiversity and Conservation – Topic: Rivet Popper Hypothesis

6 Match the consequence in Ehrlich's analogy to its real-world ecological phenomenon:

Column 1	Column 2
1. Plane becomes dangerously weak over time	i. Extinction of key species
2. Initial removal of a few rivets	ii. Gradual loss of ecosystem resilience
3. Removing rivets on wings	iii. Extinction of functionally redundant species

A 1-ii, 2-i, 3-iii

B 1-iii, 2-ii, 3-i

C 1-i, 2-ii, 3-iii

D 1-ii, 2-iii, 3-i

💡 Short Explanation

Weak plane = Cumulative resilience loss. Initial rivets = Redundant species. Wing rivets = Key/Keystone species.

✅ Correct Answer Explanation

The analogy equates the weakening of the plane to the gradual loss of ecosystem resilience (1-ii). Removing "non-essential" rivets initially corresponds to the loss of functionally redundant species (2-iii). Removing critical wing rivets equates to the extinction of key species (3-i).

❓ Why Other Options Are Incorrect

Options A, B, and C fail to correctly link the analogy components to the ecological concepts.

🎯 Strategy

Used: Option Grouping

Application: Matching "Plane/System" status to "Ecology/Species" impact.

Final Logic: Wing = Key, Initial = Redundant.

🧠 Memory Trick

"Wing = Key."

📚 Biodiversity and Conservation – Topic: Rivet Popper Hypothesis

7 If a specific fungal species responsible for decomposing 80% of dead wood in a forest goes extinct, it acts as a "rivet on the wing". Why is this loss deemed more critical than the loss of a rare orchid (a "rivet on a seat")?

A The fungus drives a major ecosystem function

B The fungus is larger in size than the orchid

C Orchids do not belong to the ecosystem

D Fungi are economically more valuable

💡 Short Explanation

Key species = Critical function. The fungus performs a critical process (decomposition). Functionality, not size or value, determines "rivet" status.

✅ Correct Answer Explanation

In the Rivet Popper hypothesis, a "rivet on the wing" is a metaphor for a keystone species that performs an essential, system-wide function. Since the fungus is responsible for 80% of decomposition, its loss would disrupt the nutrient cycling of the entire forest, making it a critical "wing rivet."

❓ Why Other Options Are Incorrect

Option B → Size is irrelevant to ecological importance.
Option C → Orchids are part of ecosystems, just not necessarily keystone species.
Option D → The importance is functional, not economic.

🎯 Strategy

Used: Contextual/Tonal Matching

Application: Identifying that the "wing" analogy refers to high-impact functional species.

Final Logic: Function = Keystone = Wing rivet.

🧠 Memory Trick

"Function = Wing."

📚 Biodiversity and Conservation – Topic: Rivet Popper Hypothesis

8 Which of the following scenarios is NOT an example of losing a "key species that drives major ecosystem functions"?

A Extinction of a top predator controlling herbivore populations

B Extinction of the primary pollinator for a keystone forest tree

C Loss of an endemic insect that relies on a specific rare weed

D Eradication of a nitrogen-fixing bacterium vital for soil fertility

💡 Short Explanation

Key species are those whose loss triggers a collapse. Losing a dependent insect is a narrow loss, not a major system-wide disruption. A, B, and D involve system-wide cycles (Predation, Pollination, Nutrient cycling).

✅ Correct Answer Explanation

A "key species" drives major ecosystem-wide functions (e.g., nitrogen fixation, energy flow through predation, or reproduction of entire tree populations). The insect in Option C is a specialized consumer; its loss is a tragedy for the species but does not necessarily collapse a major system-wide function like nutrient cycling or global pollination.

❓ Why Other Options Are Incorrect

Option A, B, and D all describe the loss of species that anchor major ecosystem processes.

🎯 Strategy

Used: Elimination

Application: Differentiating between "keystone" (system-altering) and "specialist" (narrow-impact) extinctions.

Final Logic: Keystone = Major function.

🧠 Memory Trick

"Major Function = Keystone."

📚 Biodiversity and Conservation – Topic: Rivet Popper Hypothesis

📄 Passage

"How is the 'Sixth Extinction' presently in progress different from the previous episodes? The difference is in the rates; the current species extinction rates are estimated to be 100 to 1,000 times faster than in the pre-human times and our activities are responsible for the faster rates. Ecologists warn that if the present trends continue, nearly half of all the species on earth might be wiped out within the next 100 years."

Based on the passage, what analytical conclusion can be drawn about the primary driver of the 'Sixth Extinction' compared to the previous five?

A It is driven by natural geological shifts rather than climate change

B It is driven by anthropogenic factors rather than natural catastrophes

C It is driven entirely by alien species invasions

D It is driven by a decrease in solar energy

💡 Short Explanation

The passage states "our activities are responsible". Previous extinctions were natural. This is the defining difference.

✅ Correct Answer Explanation

The provided text explicitly contrasts the current "Sixth Extinction" with previous episodes by stating that human activities (anthropogenic factors) are the drivers behind the currently accelerated extinction rates, as opposed to the natural geological or cosmic causes of the past.

❓ Why Other Options Are Incorrect

Options A, C, and D attribute the extinction to natural phenomena, which contradicts the passage.

🎯 Strategy

Used: Substitution

Application: Directly matching the text "our activities are responsible" to the term "anthropogenic factors."

Final Logic: Human = Anthropogenic.

🧠 Memory Trick

"Anthropogenic = Human-made."

📚 Biodiversity and Conservation – Topic: Loss of Biodiversity (Extinction)

📄 Passage

If the pre-human extinction rate was 'X', how does the text mathematically express the current extinction rate driven by human activities?

A X + 100

B 10X to 100X

C 100X to 1,000X

D X/100 to X/1000

💡 Short Explanation

Text states 100 to 1,000 times faster. 100 to 1,000 * the background rate (X). Matches the numerical claim in the provided passage.

✅ Correct Answer Explanation

The passage states that current extinction rates are "100 to 1,000 times faster" than pre-human times. If X is the background rate, then the current rate is mathematically 100X to 1,000X.

❓ Why Other Options Are Incorrect

A is addition, not multiplication.
B and D are numerically incorrect based on the text.

🎯 Strategy

Used: Contextual/Tonal Matching

Application: Fact retrieval from the provided passage.

Final Logic: 100–1,000 times faster = 100X–1000X.

🧠 Memory Trick

"100 to 1,000 times."

📚 Biodiversity and Conservation – Topic: Loss of Biodiversity (Extinction)

11 The fact that present extinction rates are 100 to 1000 times faster than pre-human times implies what about the evolutionary process of speciation?

A Speciation is happening at the exact same accelerated rate

B Speciation is outpacing extinction

C Speciation cannot compensate for this rapid loss, leading to a net deficit in global biodiversity

D Speciation is entirely unaffected by human activities

💡 Short Explanation

Speciation is a very slow natural process. Extinction is currently occurring at an artificially high speed. The gap between these rates creates a biodiversity deficit.

✅ Correct Answer Explanation

Evolutionary speciation occurs over geological timescales. The current anthropogenic extinction rate is 100 to 1,000 times higher than the natural background rate, far outstripping the slow pace of new species formation. This creates a net loss in the Earth's total biodiversity.

❓ Why Other Options Are Incorrect

Option A → There is no evidence that speciation is accelerating to match extinction.
Option B → If speciation outpaced extinction, biodiversity would be increasing.
Option D → Human impacts on habitat indirectly affect the conditions necessary for speciation.

🎯 Strategy

Used: Elimination

Application: Options A and B are logically impossible given the "extinction crisis" context; D is factually weak.

Final Logic: Fast Loss > Slow Gain = Net Deficit.

🧠 Memory Trick

"Loss > Gain = Deficit."

📚 Biodiversity and Conservation – Topic: Biodiversity Loss

12 Ecologists predict half of all species may be wiped out within 100 years. Which of the following does NOT contribute to this rapid progress of the Sixth Extinction?

A Constant, predictable environments promoting niche specialization

B Habitat loss and fragmentation

C Over-exploitation of resources

D Co-extinctions

💡 Short Explanation

Constant, predictable environments are stable (healthy). The other options (B, C, D) are the "Evil Quartet" of biodiversity loss. The question asks for the factor that does NOT contribute to extinction.

✅ Correct Answer Explanation

Habitat loss, fragmentation, over-exploitation, and co-extinctions are primary drivers of extinction. A "constant, predictable environment" is typically conducive to species survival and stability, not extinction.

❓ Why Other Options Are Incorrect

Option B, C, and D are direct contributors to the current extinction crisis.

🎯 Strategy

Used: Odd One Out

Application: A represents a stable, natural condition, while B, C, and D represent human-driven stressors.

Final Logic: Stability doesn't cause extinction.

🧠 Memory Trick

"Stable is Safe."

📚 Biodiversity and Conservation – Topic: Loss of Biodiversity

13 Match the ecological phenomena with their potential long-term analytical consequences as per regional biodiversity loss:

Column 1	Column 2
1. Loss of primary producers	i. Complete collapse of higher trophic levels
2. Lowered resistance	ii. High mortality during seasonal droughts
3. Increased variability	iii. Unpredictable agricultural yields and pest outbreaks

A 1-iii, 2-i, 3-ii

B 1-ii, 2-iii, 3-i

C 1-i, 2-ii, 3-iii

D 1-i, 2-iii, 3-ii

💡 Short Explanation

Producers are the base; loss = collapse of levels (i). Lowered resistance = vulnerability to drought (ii). Instability = unpredictable yields/pests (iii).

✅ Correct Answer Explanation

This matches the functional consequences of losing biodiversity: Loss of producers impacts energy flow (trophic collapse), lower resistance makes systems vulnerable to environmental stress (drought), and instability leads to unpredictable output in human-managed systems (agriculture).

❓ Why Other Options Are Incorrect

Other pairings fail to align the ecological concept with its direct systemic consequence.

🎯 Strategy

Used: Option Grouping

Application: Aligning the "Cause" (Loss of diversity component) to the "Effect" (System-wide outcome).

Final Logic: Base loss = Collapse; Low resistance = Drought impact.

🧠 Memory Trick

"1-i (Base-Collapse), 2-ii (Resistance-Drought)."

📚 Biodiversity and Conservation – Topic: Biodiversity and Stability

14 An ecosystem with low biodiversity faces an environmental perturbation like drought. Analytically, why does it exhibit increased variability in water use compared to a highly diverse ecosystem?

A Low diversity ecosystems lack alternate species that can maintain functional stability under stress

B Low diversity ecosystems always have deeper root systems

C A diverse ecosystem consumes more water, depleting it faster

D Plants in low diversity ecosystems cannot perform photosynthesis

💡 Short Explanation

High diversity = Functional redundancy. Redundant species fill gaps during stress. Low diversity = No "Plan B".

✅ Correct Answer Explanation

Functional stability under environmental stress is maintained by having a variety of species that respond differently to change. A low-diversity ecosystem lacks this "portfolio" of species, so when the primary species fail during a drought, the system has no backup, leading to high variability in ecosystem output.

❓ Why Other Options Are Incorrect

Option B → Diversity does not dictate root depth per se.
Option C → This is a false generalization; diverse systems are often more efficient.
Option D → Plants in low diversity areas absolutely perform photosynthesis.

🎯 Strategy

Used: Elimination

Application: A is the standard ecological explanation for the importance of biodiversity in stability; the others are scientifically inaccurate.

Final Logic: Diversity = Backup = Stability.

🧠 Memory Trick

"Backup = Biodiversity."

📚 Biodiversity and Conservation – Topic: Biodiversity and Stability

15 Evaluate the following statements regarding 'bioprospecting':
I. It is a broadly utilitarian approach to conservation.
II. It explores molecular, genetic, and species-level diversity for economic products.
III. It justifies conservation based on future direct economic benefits. Which are correct?

A I and II only

B II and III only

C I and III only

D I, II, and III

💡 Short Explanation

I is false: Bioprospecting is Narrowly Utilitarian (direct profit). II is true: It explores genetic/molecular diversity for products. III is true: It is justified by potential future direct economic gain.

✅ Correct Answer Explanation

Bioprospecting is a classic "Narrowly Utilitarian" argument because it focuses on extracting immediate or potential direct economic products (e.g., medicine). Therefore, Statement I is wrong. Statements II and III accurately describe the process and the justification of bioprospecting.

❓ Why Other Options Are Incorrect

Options A, C, and D are incorrect because they include Statement I, which misclassifies the approach.

🎯 Strategy

Used: Elimination

Application: Recognizing that bioprospecting is the prime example of Narrow Utilitarianism, thus invalidating Statement I.

Final Logic: Prospecting = Profit = Narrow.

🧠 Memory Trick

"Bioprospect = Narrow Profit."

📚 Biodiversity and Conservation – Topic: Narrowly Utilitarian

16 More than 25% of drugs sold worldwide are plant-derived. Analytically, how does this statistic strongly support the conservation of tropical rain forests?

A It proves that all synthetic drugs are harmful

B It suggests that tropical rainforests should be cleared to cultivate only medicinal plants

C It implies an immense, yet-to-be-explored pharmaceutical potential in the high-biodiversity tropics

D It shows that native peoples have already discovered all useful medicines

💡 Short Explanation

High diversity = High chemical diversity. We have only explored a fraction. Conserving the forest preserves the "library" of potential drugs.

✅ Correct Answer Explanation

The 25% statistic shows that plants are already a massive source of medicine. Since tropical rainforests house the majority of global biodiversity, they are the most likely source for discovering the next generation of medicines, providing a powerful economic argument for conservation.

❓ Why Other Options Are Incorrect

Option A → Natural doesn't mean synthetic is bad; it's a false dichotomy.
Option B → Clearing forests destroys the very source of potential medicines.
Option D → This is factually incorrect; exploration is ongoing.

🎯 Strategy

Used: Contextual/Tonal Matching

Application: Identifying the logical argument linking biodiversity to pharmaceutical potential.

Final Logic: More Species = More Chemistry = More Medicine.

🧠 Memory Trick

"Diversity = Drug Discovery."

📚 Biodiversity and Conservation – Topic: Narrowly Utilitarian

17 Arrange the following statements logically to form a broadly utilitarian argument for protecting the Amazon rainforest:
1. The Amazon provides an invaluable ecosystem service that cannot be artificially replicated.
2. The Amazon produces 20% of the Earth's oxygen through photosynthesis.
3. Therefore, destroying the Amazon imposes an immense, unpayable cost on global health.
4. Putting an economic value on oxygen (like in hospitals) reveals its massive hidden worth.

A 1, 2, 3, 4

B 2, 4, 1, 3

C 2, 1, 4, 3

D 4, 2, 1, 3

💡 Short Explanation

Start with the fact (2). Assign value (4). Acknowledge the uniqueness (1). Conclude the impact (3).

✅ Correct Answer Explanation

The logical argument proceeds by stating the service (Oxygen production, 2), quantifying it via an economic proxy (Hospital cost, 4), noting its irreplaceability (1), and concluding with the disastrous economic/health cost of losing it (3).

❓ Why Other Options Are Incorrect

Other sequences disrupt the logical flow of evidence to conclusion.

🎯 Strategy

Used: Substitution

Application: Following the deductive flow: Fact -> Valuation -> Unique Importance -> Conclusion.

Final Logic: Fact (2) -> Value (4) -> Unique (1) -> Consequence (3).

🧠 Memory Trick

"Fact, Value, Unique, Result."

📚 Biodiversity and Conservation – Topic: Broadly Utilitarian

18 If a sudden decline in natural pollinator diversity occurs globally, what represents the hidden economic cost highlighted by the broadly utilitarian argument?

A The cost of genetically modifying all flowers

B The immense financial and labor costs required to accomplish pollination manually or mechanically

C The cost of importing more bees from other planets

D The cost of shifting strictly to a meat-based diet

💡 Short Explanation

Pollination is a "free" ecosystem service. Losing it means paying for artificial alternatives. Quantifying that cost is the "Broadly Utilitarian" exercise.

✅ Correct Answer Explanation

Broadly utilitarian arguments highlight that nature provides essential services (like pollination) for "free." If we lose these, we must replace them with human labor or mechanical systems, which would be financially ruinous. This hypothetical replacement cost reveals the true "hidden" value.

❓ Why Other Options Are Incorrect

Options A, C, and D are illogical or technologically irrelevant/impossible.

🎯 Strategy

Used: Elimination

Application: Identifying the only practical, economic consequence of replacing a natural ecosystem service.

Final Logic: Free Service Lost = High Replacement Cost.

🧠 Memory Trick

"Pollination = Free Service."

📚 Biodiversity and Conservation – Topic: Broadly Utilitarian

19 Which of the following statements does NOT align with the philosophical and ethical argument for conservation?

A Every species has an intrinsic value regardless of its economic use

B We have a moral duty to care for the well-being of species

C Conservation is justified primarily because unexplored species might cure diseases

D We must pass on our biological legacy in good order

💡 Short Explanation

A, B, and D are "Intrinsic/Ethical" arguments (Right to life). C is a "Utilitarian/Economic" argument (Potential profit). The question asks what does NOT align with Ethical.

✅ Correct Answer Explanation

The ethical argument focuses on the inherent right of species to exist (intrinsic value). Justifying conservation because of potential cures (medicines) is a utilitarian argument, as it ties the value of the species to human benefit.

❓ Why Other Options Are Incorrect

A, B, and D are the classic definitions of the ethical approach.

🎯 Strategy

Used: Odd One Out

Application: Identifying that C is a profit-based justification, whereas A, B, and D are moral justifications.

Final Logic: Moral vs. Profit.

🧠 Memory Trick

"Ethical = Existence, Not Utility."

📚 Biodiversity and Conservation – Topic: Ethical Considerations

20 From an ethical standpoint, treating biological diversity as a "legacy" implies that current human generations act as what?

A Custodians or trustees for future generations

B Absolute owners of all natural resources

C Bioprospectors seeking maximum profit

D Rivet poppers dismantling the ecosystem

💡 Short Explanation

Legacy implies inheritance. Trustees manage inheritance for future heirs. This is the moral definition of stewardship.

✅ Correct Answer Explanation

Viewing biodiversity as a "legacy" means it is not ours to destroy; it is something we hold in trust to pass on. This makes our role that of "custodians" or "trustees" rather than "owners" or "exploiters."

❓ Why Other Options Are Incorrect

Option B, C, and D are roles that lead to the destruction of the legacy, not its preservation.

🎯 Strategy

Used: Contextual/Tonal Matching

Application: Defining the word "legacy" in an ethical/conservationist framework.

Final Logic: Legacy = Trust/Custodian.

🧠 Memory Trick

"Legacy = Trustee."

📚 Biodiversity and Conservation – Topic: Ethical Considerations

CUET UG Biology Booster Test 3-Ecosystem Stability and Function

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