Biodiversity and its Conservation Test 4

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Biodiversity and its Conservation Test 4

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following can solely keep an ecosystem self-sustaining and viable?

A
producer-decomposer food chain

B
producer-predator food chain

C
producer-consumer food chain

D
consumer-decomposer food chain

Solution

Producer-decomposer food chain keep an ecosystem self-sustaining and viable. Producer converts solar energy into chemical energy in form of food and decomposer breaks complex organic matter into simpler forms to maintain ecosystem.
Question 2
1 / -0

Following plants belonging to same genus (Solanum) represent:

A
gamma diversity

B
species diversity

C
community diversity

D
genetic diversity

Solution

Tomato, potato, Brinjal etc. belongs to genus Solanum although they are of diverse forms. This variation in form represent species diversity belonging to same genus.
Question 3
1 / -0

Alpha diversity will describe:

A
diversity within biomes

B
intra community diversity

C
inter community diversity

D
diversity within a species population

Solution

Alpha diversity refers to the diversity within a particular area of ecosystem and usually expressed by the number of species in that ecosystem.
Question 4
1 / -0

Which of the benefits, wetlands provide?

A
They provide social, economic and environmental beneficiaries.

B
They prevent flood and recharge groundwater.

C
Being rich in nutrients, they provide a diverse and productive ecosystem.

D
All options are correct.

Solution

Wetland provide benefits like prevention from flood and recharge ground water, social, economic and environmental benefits and being rich in nutrients, they provide a diverse and productive ecosystem.
Question 5
1 / -0

Out of the following which one will not represent an alternative way to categories ecosystem diversity:

A
population diversity

B
community diversity

C
habitat diversity

D
landscape diversity

Solution

Biodiversity can be classified on the basis of community, habitat and landscape but not on the basis of population of particular species in the biosphere.
Question 6
1 / -0

Keystone species include :

A
Only tiger

B
Only American bullfrogs

C
Tiger, Salmon and Sea Otters

D
Sea otters and American bullfrogs

Solution

Keystone species maintain the diversity of ecosystem by changing food chain and are responsible for stability of ecosystem. Tiger, Salmon and Sea Otters are keystone species.
Question 7
1 / -0

Polyps and medusae of coelenterates (fixed and free-floating stages) are examples of polymorphism related to:

A
genetic diversity

B
species diversity

C
ecosystem diversity

D
habitat diversity

Solution

Two or more forms of same species is called polymorphism. Coelenterates are of two kinds alternating with each other. Polys forms remain fixed with attached with substratum and medusa forms are free-floating stages.
Question 8
1 / -0

If snakes become extinct :
i). The loss will make the bionetwork imbalanced
ii). Their gene pool will be lost forever
iii). Result will be loss of biodiversity

A
only statement i) & iii) are correct.

B
only statement ii) & iii) are correct.

C
only statement iii) is correct.

D
all statements are correct.

Solution

In food chain, each organism has its own role in flow of energy and nutrient cycle. If snakes become extinct the loss will make the biological network imbalanced. Their gene pool will lost forever that results into loss of biodiversity.
Question 9
1 / -0

Assertion: The pattern of species diversity on earth is not uniformly distributed.
Reason: Species variation is generally highest in the tropics and decreases towards the poles.

A
Assertion is correct but reason is incorrect.

B
Assertion is incorrect but reason is correct.

C
Both assertion and reason are correct.

D
Both assertion and reason are incorrect.

Solution

The pattern of species diversity on earth is not uniformly distributed. Species variation is generally highest in the tropics and decreases towards the poles due to variation in temperature.
Question 10
1 / -0

Match the following:

National park   State
a) Shiv Puri National Park   i) Meghalaya
b) Hazaribagh National Park    ii) Orissa
c) Simlipal National Park   iii) Jharkhand
d) Nokrek National Park iv) Madhya Pradesh

A
a)-ii, b)-iii, c)-ii, d)-iv

B
a)-iv, b)-iii, c)-ii, d)-i

C
a)-iv, b)-i, c)-ii, d)-iii

D
a)-ii, b)-i, c)-iv, d)-iii

Solution

Shiv puri national park is in Madhya Pradesh, Hazaribagh national park in Jharkhand, Simlipal national park in Orissa and Nokrek national park in Maghalaya.
Question 11
1 / -0

The legal conversion of land into the status of royal forest refers to:

A
reforestation

B
afforestation

C
agroforestry

D
social forestry

Solution

The legal conversion of land into the status of royal forest is a kind of afforestation. This conversion of land is done to protect the particular species endemic to area.
Question 12
1 / -0

Which of the following is a major cause of reduction in gene pool?

A
Genetic drift

B
Genetic mutation

C
Breeding programmes

D
Reproductive isolation

Solution

Gene pool is the sum total of gemone of different organism of a particular species. Reduction of gene pool is mainly caused by genetic drift along with reasons like geographical isolations.
Question 13
1 / -0

Which of the following will maintain species diversity by stabilizing the food web and preventing competition?

A
Decomposers

B
Keystone predators

C
Keystone producers

D
Scavengers

Solution

Keystone species is plant of animal that plays a unique and crucial role in the way an ecosystem functions. The species diversity in an ecosystem is stabalised by keystone species through food web and preventing competition.
Question 14
1 / -0

The area of National Parks range between:

A
0.61 to 7818 kms

B
0.04 to 3162 kms

C
0.14 to 3612 kms

D
0.16 to 8718 kms

Solution

National Parks are small reserves maintained by the Government for the protection of wildlife and their habitat. 0.61 to 7818 kms is the range for sanctuaries.
Question 15
1 / -0

The evil quartet described by Jared Diamond doesn’t include :

A
introduction of invasive species

B
fragmentation

C
fission

D
overharvesting

Solution

Evil quartet are for process that are responsible for loss of biodiversity. It includes fragmentation, overharvesting, introduction of invasive species and habitat degradation. It do not include fission.
Question 16
1 / -0

Which of the following species had been not recently extinct?

A
Quagga (Africa)

B
Steller’s Sea cow (Russia)

C
Dodo (Mauritius)

D
Bengal tiger (India)

Solution

The species that had been recently extinct includes Quagga (Africa), Steller’s Sea cow (Russia) and Dodo (Mauritius). Bengal tiger is not extinct so far.
Question 17
1 / -0

Which of the following group of animals are more venerable to extinction?

A
Reptiles

B
Aves

C
Amphibians

D
Mammals

Solution

Amphibians group of animals are more venerable to extinction. About 33% of amphibians are facing danger of extinction followed by 23% of mammals and 12% of birds species.
Question 18
1 / -0

The main cause of diversity loss is the

A
Volcanic eruptions

B
Due to human activities.

C
Struggle for existence.

D
Climate change

Solution

The main cause of accelerated extinction of species diversity loss is the human activities like deforestation, urbanization, industrialization etc.
Question 19
1 / -0

Loss of biodiversity in a region may leads to
a. Decline in plant production
b. Lowered resistance to environmental perturbations such as drought.
c. Decreased variability in the ecosystem.

A
Only ‘b’ and ‘c’ is correct.

B
Only ‘a’ and ‘b’ is correct.

C
All are correct.

D
All are incorrect.

Solution

Loss of biodiversity in a region may leads to ,decline in plant production, lowered resistance to environmental perturbations such as drought and increased variability in certain ecosystem processes.
Question 20
1 / -0

Species which suffered a near-extinction from ingesting the carrion of diclofenac-treated cattle is/are:

A
only white rumped vulture

B
Himalayan Wolf and Bengal tiger

C
Striped Hyena and white rumped vulture

D
Bengal tiger and white rumped vulture

Solution

Bengal tiger ans white rumped vulture suffered near-extinction from ingesting the carrion of Diclofenac-treated cattle.
Question 21
1 / -0

Wild animals :
i) Frequently breed in Zoos.
ii) Reproductive capacity is lowered if area of free movement is reduced.

A
Statement i is correct but ii is wrong.

B
Statement ii is correct but i is wrong.

C
Both statements are wrong.

D
Both statements are correct.

Solution

Reproductive capacity of an animals is lowered if area of free movement is reduced. So, wild animals do not breed frequently in Zoos. So, statement i is wrong and ii is correct.
Question 22
1 / -0

If a species experiences a 90 percent decline over 10 years (or three generations), would be classified as :

A
critically endangered

B
vulnerable

C
data deficient

D
endangered

Solution

If a species experiences 90 percent decline over three generation (about 10 years) would be called as critically endangered species. Critically endangered species should be protected to avoid extinction.
Question 23
1 / -0

Select the group which represents only critically endangered species (as per 2008 red list):

A
Amur Leopard, cross river gorilla, hawksbill turtle & leatherback turtle

B
Cross river gorilla, arctic fox, mountain gorilla & amur leopard

C
African elephant, red panda, polar bear & Giant panda

D
Giant panda, loggerhead turtle, snow leopard & leatherback turtle

Solution

According to red data book 2008, Amur Leopard, Cross river gorilla, Hawksbill turtle and Leatherback turtle are listed as critically endangered species.
Question 24
1 / -0

To qualify as a biodiversity hotspot , as per Myers hotspot map:
a) it must contain at least 0.5% or 1,500 species of vascular plants as endemics.
b) it has to have lost at least 70% of its primary vegetation.

A
Statement a) is correct but b) is wrong.

B
Statement b) is correct but a) is wrong.

C
Both statements are correct.

D
Both statements are incorrect.

Solution

To qualify as a biodiversity hotspot, as per Myers hotspt map, it must contain at least 0.5% or 1500 species of vascular plants as endemics. It must have lost at least 70% of its primary vegetation.
Question 25
1 / -0

Buffer zone is managed to accommodate variety of resources for restoration of degraded ecosystems and habitats, conservation of genetic resources, species and ecosystem and monitoring of development and conservation programme. It can never extinct species.

A
Research and education

B
Forestry

C
Agriculture

D
Tourism and restoration

Solution

Buffer zone surrounds the core area and is managed to accommodate variety of resources use strategies, research and education.

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Biodiversity and its Conservation Test 4

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Biodiversity and its Conservation Test 4

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Question 1

producer-decomposer food chain

producer-predator food chain

producer-consumer food chain

consumer-decomposer food chain

Solution

Question 2

gamma diversity

species diversity

community diversity

genetic diversity

Solution

Question 3

diversity within biomes

intra community diversity

inter community diversity

diversity within a species population

Solution

Question 4

They provide social, economic and environmental beneficiaries.

They prevent flood and recharge groundwater.

Being rich in nutrients, they provide a diverse and productive ecosystem.

All options are correct.

Solution

Question 5

population diversity

community diversity

habitat diversity

landscape diversity

Solution

Question 6

Only tiger

Only American bullfrogs

Tiger, Salmon and Sea Otters

Sea otters and American bullfrogs

Solution

Question 7

genetic diversity

species diversity

ecosystem diversity

habitat diversity

Solution

Question 8

only statement i) & iii) are correct.

only statement ii) & iii) are correct.

only statement iii) is correct.

all statements are correct.

Solution

Question 9

Assertion is correct but reason is incorrect.

Assertion is incorrect but reason is correct.

Both assertion and reason are correct.

Both assertion and reason are incorrect.

Solution

Question 10

a)-ii, b)-iii, c)-ii, d)-iv

a)-iv, b)-iii, c)-ii, d)-i

a)-iv, b)-i, c)-ii, d)-iii

a)-ii, b)-i, c)-iv, d)-iii

Solution

Question 11

reforestation

afforestation

agroforestry

social forestry

Solution

Question 12

Genetic drift

Genetic mutation

Breeding programmes

Reproductive isolation

Solution