Biodiversity and Conservation Test

Result

Biodiversity and Conservation Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

What analogy does Paul Ehrlich use to explain the importance of species in an ecosystem?

A
Plane engine

B
Rivet popper

C
Gear mechanism

D
Windshield wipers

Solution

Paul Ehrlich uses the "rivet popper hypothesis" analogy to explain the importance of species in an ecosystem.
Question 2
1 / -0

Which region has the greatest biodiversity on Earth?

A
Amazon rainforest

B
Arctic tundra

C
Sahara desert

D
Siberian taiga

Solution

The Amazon rainforest has the greatest biodiversity on Earth.
Question 3
1 / -0

Which of the following is NOT an attribute of a stable biological community?

A
High productivity variability

B
Resistance to disturbances

C
Resilience to disturbances

D
Resistance to invasions by alien species

Solution

High productivity variability is not an attribute of a stable biological community.
Question 4
1 / -0

Which country is NOT mentioned as an example of a mega diversity country?

A
India

B
Norway

C
Brazil

D
Australia

Solution

Norway is not mentioned as a mega diversity country.
Question 5
1 / -0

What is genetic diversity?

A
Diversity of species in an ecosystem

B
Variation in the genetic makeup of individuals within a species

C
Diversity of ecosystems in a region

D
Variation in the physical traits of organisms

Solution

Genetic diversity refers to the variation in the genetic makeup of individuals within a species, such as differences in traits or genetic markers.
Question 6
1 / -0

What is the primary reason for the high species diversity in tropical regions?

A
Constant environmental conditions

B
Low solar energy availability

C
Frequent glaciations

D
Short evolutionary time

Solution

Constant environmental conditions in tropical regions promote niche specialization and species diversification.
Question 7
1 / -0

What is the estimated global species diversity according to Robert May?

A
20 million

B
7 million

C
50 million

D
1.5 million

Solution

Robert May estimates global species diversity to be around 7 million.
Question 8
1 / -0

What is the significance of the species-area relationship observed by Alexander von Humboldt?

A
Species richness decreases with increasing explored area.

B
Species richness remains constant regardless of explored area.

C
Species richness increases with increasing explored area but up to a limit.

D
Species richness is not related to explored area.

Solution

Species richness increases with increasing explored area, but up to a limit, as observed by Alexander von Humboldt.
Question 9
1 / -0

According to David Tilman's experiments, what effect does increased species diversity have on ecosystem stability?

A
Decreased stability

B
No effect on stability

C
Increased stability

D
Unpredictable stability

Solution

Increased species diversity contributes to increased stability and productivity, as observed in David Tilman's experiments.
Question 10
1 / -0

How do current species extinction rates compare to pre-human times?

A
Similar rates

B
Slower rates

C
Faster rates

D
Unpredictable rates

Solution

Current species extinction rates are estimated to be 100 to 1,000 times faster than in pre-human times.

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Re-Attempt Weekly Quiz Competition

Biodiversity and Conservation Test - 2

Result

Biodiversity and Conservation Test - 2

Score

-

Rank

-

SHARING IS CARING

Question 1

Plane engine

Rivet popper

Gear mechanism

Windshield wipers

Solution

Question 2

Amazon rainforest

Arctic tundra

Sahara desert

Siberian taiga

Solution

Question 3

High productivity variability

Resistance to disturbances

Resilience to disturbances

Resistance to invasions by alien species

Solution

Question 4

India

Norway

Brazil

Australia

Solution

Question 5

Diversity of species in an ecosystem

Variation in the genetic makeup of individuals within a species

Diversity of ecosystems in a region

Variation in the physical traits of organisms

Solution

Question 6

Constant environmental conditions

Low solar energy availability

Frequent glaciations

Short evolutionary time

Solution

Question 7

20 million

7 million

50 million

1.5 million

Solution

Question 8

Species richness decreases with increasing explored area.

Species richness remains constant regardless of explored area.

Species richness increases with increasing explored area but up to a limit.

Species richness is not related to explored area.

Solution

Question 9

Decreased stability

No effect on stability

Increased stability

Unpredictable stability

Solution

Question 10

Similar rates

Slower rates

Faster rates

Unpredictable rates

Solution

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