Q.139 Botany ⭐ 360° Option Elimination Active

NEET 2024 Botany Question 139 Solution

Topic: Biodiversity and Conservation · Official NTA Booklet Code T1

Question

Match List I with List II. List I: A. Robert May; B. Alexander von Humboldt; C. Paul Ehrlich; D. David Tilman. List II: I. Species-Area relationship; II. Long term ecosystem experiment using out door plots; III. Global species diversity at about 7 million; IV. Rivet popper hypothesis. Choose the correct answer from the options given below:

✓

Verified Against NTA Final Answer Key

Option (4) : A-III, B-I, C-IV, D-II

📚 Biodiversity and Conservation Easy

📋 Given Parameters & Problem Setup

List I (Ecologists/Scientists) A: Robert May; B: Alexander von Humboldt; C: Paul Ehrlich; D: David Tilman

List II (Ecological Concepts) I: Species-Area relationship; II: Long term ecosystem experiment using outdoor plots; III: Global species diversity at about 7 million; IV: Rivet popper hypothesis

⚡

The 30-Second Exam Hall Shortcut: ⚡ Ecological Masters Quick Match

⏱️ Save ~25 seconds

Robert May = 7 million species (III); Humboldt = Species-Area rectangular hyperbola (I); Paul Ehrlich = Rivet popper (IV); Tilman = Outdoor plots stability (II). Result: A-III, B-I, C-IV, D-II!

1 A. Robert May: estimated global species diversity at about 7 million (III).

2 B. Alexander von Humboldt: formulated the Species-Area relationship

S = C A^z

(I).

3 C. Paul Ehrlich: proposed the Rivet popper hypothesis using airplane analogy (IV).

4 D. David Tilman: showed in outdoor plot experiments that more diverse plots had less year-to-year variation in biomass (II).

5 Matching order: A-III, B-I, C-IV, D-II -> Option (4) / D.

🛡️

Why You Can 100% Trust This Shortcut: NCERT Biology · Biodiversity and Conservation (Pioneers of Biodiversity Science)

📐

Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Match Robert May and Alexander von Humboldt

Robert May placed the global species diversity at a conservative and scientifically sound estimate of about 7 million (A -> III). Alexander von Humboldt observed that within a region, species richness increased with increasing explored area up to a limit (Species-Area relationship) (B -> I).

Step 2

Match Paul Ehrlich and David Tilman

Stanford ecologist Paul Ehrlich used an airplane analogy ('rivet popper hypothesis') to explain the consequences of species extinction on ecosystem functioning (C -> IV). David Tilman’s long-term ecosystem experiments using outdoor plots provided empirical evidence linking species richness to ecosystem stability and biomass constancy (D -> II).

Step 3

Select Matching Choice

The resulting sequence is A-III, B-I, C-IV, D-II, matching Option (4).

⭐

360° Option Elimination Engine Key Feature

Diagnose every choice: Know exactly why the right option works and why distractors fail.

4-Option Deep Scan

1 (1)

✗ Incorrect

Verdict & Scientific Reason:

Mismatches May with Species-Area and Tilman with Rivet popper.

⚠️

Student Fallacy (Why candidates pick this trap): Mismatches May with Species-Area and Tilman with Rivet popper.

2 (2)

✗ Incorrect

Verdict & Scientific Reason:

Mismatches Humboldt with Rivet popper.

⚠️

Student Fallacy (Why candidates pick this trap): Mismatches Humboldt with Rivet popper.

3 (3)

✗ Incorrect

Verdict & Scientific Reason:

Mismatches May with outdoor plots.

⚠️

Student Fallacy (Why candidates pick this trap): Mismatches May with outdoor plots.

4 (4)

✓ 100% Correct

Verdict & Scientific Reason:

Accurately pairs all four prominent ecologists with their respective foundational discoveries.

💡

Why this is airtight: None.

⚠️

NTA Trap Alert: Tilman vs Ehrlich Confusion

Swapping Tilman (experimental plots) with Ehrlich (rivet popper hypothesis).

🛡️ How to avoid the -1 mark: Remember: Tilman did outdoor plot experiments; Ehrlich proposed the rivet popper airplane analogy.

📖

Core NEET Syllabus Standard

Biology Core Botany · Biodiversity and Conservation Standard Benchmark

Core Scientific Principle Tested:

"Robert May places the global species diversity at about 7 million... Alexander von Humboldt observed species-area relationships... Paul Ehrlich used the rivet popper hypothesis... David Tilman showed long-term ecosystem experiments using outdoor plots."

Syllabus Focus: Landmark Contributions: May, Humboldt, Ehrlich, and Tilman

✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

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NEET 2024 Botany Question 139 Solution

Question

The 30-Second Exam Hall Shortcut: ⚡ Ecological Masters Quick Match

Step-by-Step Rigorous Workflow & Mathematical Proof

Match Robert May and Alexander von Humboldt

Match Paul Ehrlich and David Tilman

Select Matching Choice

360° Option Elimination Engine Key Feature

NTA Trap Alert: Tilman vs Ehrlich Confusion

Core NEET Syllabus Standard

Ready to attempt under real exam pressure?

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