Which of the following pairs will have Z value in between 0.1 to 0.2?

1. Birds of California and frugivorous birds of tropical forests

2. Birds of California and molluscs in New York state

3. Molluscs in New York state and frugivorous birds of tropical forests

4. Molluscs in New York state and mammals in tropical forests

Subtopic:  Biodiversity Patterns |
 68%
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If Z value is found to be 1.15, which of the following species richness was actually studied?

1. Frugivorous birds in the tropical Forests of different continents

2. Plants in Britain

3. Birds in California

4. Molluscs in New York state

Subtopic:  Biodiversity Patterns |
 92%
From NCERT
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If Z value is in between 0.6 to 1.2,This implies

(1) Steeper slope

(2) More towards the horizontal  axis

(3) The value of species richness decreases must faster than the area explored

(4) Plants of Britain can have this value

Subtopic:  Biodiversity Patterns |
 79%
From NCERT
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If the area explored is the entire continent, then the slope of the line for species-area relationship would be

(1) Much gentle

(2) Much reasonable

(3) Much steeper

(4) Both (2) and (3)

Subtopic:  Biodiversity Patterns |
 82%
From NCERT
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Who among the following gave tentative answers to the question that how do the attributes of a stable community are linked to species richness in a community?

1. Paul Ehrlich

2. David Tilman

3. A V. Hamboldt

4. Edward Wilson

Subtopic:  Importance of Biodiversity |
 59%
From NCERT
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Which of the following is not an attribute of a stable community?

1. Resistant to occasional disturbances

2. Resistant to invasions by alien species

3. Resilient to occasional disturbances

4. High productivity with great variation year to year

Subtopic:  Loss of Biodiversity |
 74%
From NCERT
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Rich biodiversity is not important for

(1) Healthy ecosystem

(2) Survival of human race on this planet

(3) Alien species

(4) Both (1) and (2)

Subtopic:  Importance of Biodiversity |
 79%
From NCERT
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Paul Ehrlich

Which of the following is wrong about him?

(1) Stanford Ecologist

(2) Rivet Popper Hypothesis

(3) Importance of species actually affects the extent of stability of ecosystem

(4) Worked on Outdoor plots for the apology he proposed

Subtopic:  Importance of Biodiversity |
 75%
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David Tilman actually proposed that

1. The long term ecosystem experiments using out door plots with less species showed less year to year variation in total number
2. The long term ecosystem experiments using out door plots with more species showed less year to year variation in total biomass
3. The long term ecosystem experiments using out door plots with more species showed more year to year variation in total number
4. The long term ecosystem experiments using indoor plots with less species showed less year to year variation in total biomass
Subtopic:  Importance of Biodiversity |
 79%
From NCERT
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According to Rivet Popper Hypothesis, which of the following is not correct?

1. Airplane: ecosystem

2. Rivets: species

3. Popping a rivet: causing a species to become extinct

4. Flight safety: number of species

Subtopic:  Importance of Biodiversity |
 85%
From NCERT
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