Biodiversity and Conservation Test

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Biodiversity and Conservation Test - 78

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following has to be observed to protect wildlife?

A
Prevent deforestation

B
Place ban on poaching

C
Place ban on visiting sanctuaries

D
Both A and B
Question 2
1 / -0

Select the incorrect statement.

A
Stellars sea cow and passenger pigeon got extinct due to over exploitation by men

B
The convention on biological diversity was held in 1992

C
Species diversity increase as we move away from the equator towards the poles

D
Lantana and Eichhomia are invasive weed species in India
Solution
Correct Option: C
Explanation:
Statement C is false because as we travel away from the equator and towards the poles, temperature drops and circumstances get harsher, vegetation declines, and there are less resources available to support life.
Statement A is accurate since Stellar's sea cow and passenger pigeon have become extinct as a result of human overexploitation.
Lantana and Eicchornia are invasive weeds in India, thus statement C is accurate. These weeds infiltrate disturbed natural habitats and have a negative impact on biodiversity. The weed is found all throughout India.
Statement B is accurate since the historic 'Convention on Biological Diversity,' a multinational convention, was held in 1992.
Hence, the incorrect statement is that species diversity increase as we move away from the equator towards the poles.
Question 3
1 / -0

Which one from the following is correctly matched?

A
Rhinoceros- Kaziranga National Park

B
Great Indian bustard- Keoladeo National Park

C
Lion- Corbett National Park

D
Wild ass- Dudhwa National Park

Solution

Rhinoceros (Rhinoceros unicornis) is an endangered animal and conserved in Kaziranga National Park. Therefore, option A is a correct match.
Great Indian Bustard Sanctuary is a wildlife sanctuary for the great Indian bustard at Solapur, Maharashtra, India. Therefore, option B is an incorrect match.
Lion is protected in Gir National park which is a forest and wildlife sanctuary, India. Therefore, option B is an incorrect match.
Indian Wild Ass Sanctuary also known as the Wild Ass Wildlife Sanctuary is located in the Little Rann of Kutch in the Gujarat state of India. Therefore, option D is an incorrect match.
Therefore, the correct answer is option A.
Question 4
1 / -0

Which of the following is wrongly matched?

A
Temperate zone - $$20^{\circ}\, -\, 40^{\circ}$$ latitude

B
Hypolimnion -Thermal stratifications in lakes

C
Ozone layer - Stratosphere

D
Profundal zone - Dark zone

Solution

The north temperate climate extends from the 'Tropic of Cancer' (approximately 23.5 north latitude) to the arctic circle (approximately 66.5 north latitude). The south temperate zone extends from the tropic of capricorn (approximately 23.5 south latitude) to the antarctic circle (at approximately 66.5 south latitude).
Question 5
1 / -0

The presence of diversity at the junction of territories to two different habitats is known as

A
Bottleneck effect

B
Edge effect

C
Junction effect

D
Pasteur effect

Solution

In ecology, edge effect refers to the changes in population or community diversity that occur at the boundary of two habitats. Areas with small habitat fragments exhibit especially pronounced edge effects that may extend throughout the range.
Question 6
1 / -0

Identify the correct combinations.

National Park
Place
Animal Protected
(A)
Jim corbett
Rajasthan
Tigers
(B)
Gir
Gujarat
Lions
(C)
Kaziranga
Assam
One-horned rhinoceros
(D)
Periyar
Uttaranchal
Tigers and elephants

A
(B) and (C)

B
(C) and (D)

C
(A) and (D)

D
(A) and (B)

Solution

Jim Corbett national park is located in Uttarakhand and protect the endangered Bengal tiger.
Gir national park is a forest located in Gujarat and protect lions.
Kaziranga national park is located in Assam and protects one horned rhinoceros.
Periyar national park is elephant and tiger reserve but it is located in Kerala.
Thus, the correct answer is option A.
Question 7
1 / -0

Which of the following is the most important cause of animals and plants being driven to extinction?

A
Over - exploitation

B
Alien species invasion

C
Habitat loss and fragmentation

D
Co- extinction

Solution

The accelerated rates of species extinction are largely due to human activities. The major causes of biodiversity loss are termed as "Evil quartet".
1. Over-exploitation: Humans depend on nature for food and shelter but when the need turns into greed, it leads to over-exploitation of natural resources. For example, Steller's sea cow which became extinct due to overexploitation by humans.
2. Alien species invasion: When alien species are introduced for a specific purpose, some of them turn invasive and cause extinction or decline of indigenous species. For example, the Nile perch introduced into Lake Victoria in East Africa led to the extinction of more than 200 species of cichlid fish in the lake.
3. Habitat loss and fragmentation: This is the most common cause of the extinction of animals and plants. The most dramatic example of habitat loss is the tropical rainforests. Once covering more than 14% of earth's land surface, these rainforests now don't cover even 6% of the land surface.
4. Co-extinction: When a species becomes extinct, the plant and animal species associated with it in an obligatory way also become extinct and this is known as co-extinction. For example, in plant-pollinator mutualism, extinction of one leads to the extinction of other.
So, the correct answer is 'Habitat loss and fragmentation'.
Question 8
1 / -0

Which one of the following is the first in allopatric speciation?

A
Geographic isolation

B
Hybridization

C
Genetic drift

D
Polyploidy

Solution

One common mode of speciation is known as geographic, or allopatric speciation. The first stage begins as a result of geographic separation between populations. This may occur when a few colonizers reach a geographically separate habitat. Geographic isolation most often occurs with populations that are completely separated (allopatry) by a physical barrier, such as a mountain range, river, or desert. The separated populations adapt to their own unique environments, becoming so genetically different from one another that members of one population cannot breed with members of the other.
Question 9
1 / -0

Which among the following equilibrium is represented by the circle number 3?

A
A small island far from the mainland

B
A small island close to the mainland

C
A large island far from the mainland

D
A large island close to the mainland

E
The natality and mortality rates on any island
Question 10
1 / -0

The biodiversity is positively associated with

A
Diversity of ecosystems

B
Genetic variation within species

C
Species diversity within communities

D
B and C only

E
All of the above

Solution

Biodiversity represents the sum of the total of various life forms such as unicellular fungi, bacteria, protozoa and multicellular organisms such as plants, fishes and mammals at various biological levels including gene, habitats and ecosystem. Thus, the correct option is E.

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Re-Attempt Weekly Quiz Competition

	National Park	Place	Animal Protected
(A)	Jim corbett	Rajasthan	Tigers
(B)	Gir	Gujarat	Lions
(C)	Kaziranga	Assam	One-horned rhinoceros
(D)	Periyar	Uttaranchal	Tigers and elephants

Biodiversity and Conservation Test - 78

Result

Biodiversity and Conservation Test - 78

Score

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Rank

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SHARING IS CARING

Question 1

Prevent deforestation

Place ban on poaching

Place ban on visiting sanctuaries

Both A and B

Question 2

Stellars sea cow and passenger pigeon got extinct due to over exploitation by men

The convention on biological diversity was held in 1992

Species diversity increase as we move away from the equator towards the poles

Lantana and Eichhomia are invasive weed species in India

Solution

Question 3

Rhinoceros- Kaziranga National Park

Great Indian bustard- Keoladeo National Park

Lion- Corbett National Park

Wild ass- Dudhwa National Park

Solution

Question 4

Temperate zone - $$20^{\circ}\, -\, 40^{\circ}$$ latitude

Hypolimnion -Thermal stratifications in lakes

Ozone layer - Stratosphere

Profundal zone - Dark zone

Solution

Question 5

Bottleneck effect

Edge effect

Junction effect

Pasteur effect

Solution

Question 6

(B) and (C)

(C) and (D)

(A) and (D)

(A) and (B)

Solution

Question 7

Over - exploitation

Alien species invasion

Habitat loss and fragmentation

Co- extinction

Solution

Question 8

Geographic isolation

Hybridization

Genetic drift

Polyploidy

Solution

Question 9

A small island far from the mainland

A small island close to the mainland

A large island far from the mainland

A large island close to the mainland

The natality and mortality rates on any island

Question 10

Diversity of ecosystems

Genetic variation within species

Species diversity within communities

B and C only

All of the above

Solution

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