Biodiversity and Conservation Test

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Biodiversity and Conservation Test - 83

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Weekly Quiz Competition

Question 1
1 / -0

Riya visited her village after $$10$$ years and found that there is a problem of desertification. What could be the probable reasons for this?
(i) Overgrazing.
(ii) Indiscriminate cutting of trees.
(iii) Poorly drained irrigation systems.

A
(i) and (ii) only

B
(ii) and (iii) only

C
(i) and (iii) only

D
All of the above

Question 2

1 / -0

Match the following:

A. $$\alpha$$ diversity	1. The richness of different species in a habitat.
B. $$\beta$$ diversity	2. The richness of different species along with a gradient from one habitat to another habitat within the community.
C. $$\gamma$$ diversity	3. The richness of different species in different habitat.

A-3, B-2, C-3

A-1, B-3, C-2

A-2, B-1, C-3

A-3, B-2, C-1

Solution

Alpha diversity is the number of species found in a particular area or ecosystem.
Beta diversity is the variation of the species composition between two habitats or regions. It takes into account the alpha diversity of the habitats and the number of unique species in each habitat.
Gamma diversity is a measure of the overall number of species (the diversity) within a region. It is basically the sum of all the species of all habitats within the region of interest.

So, the correct answer is "A-1, B-3, C-2".

Question 3
1 / -0

What is the approximate ratio of animals and plants species in our country?

A
3 : 1

B
2 : 1

C
1 : 3

D
1 : 2

Solution

India is very rich in varieties of animals and plants species. Around 47,000 species of plants and twice the number of animals have been recorded in India. Around 81,000 species of animals have been recorded in India. Hence, the ratio of animals and plants species in India is 2:1.
Thus, the correct answer is '2:1.'
Question 4
1 / -0

Which of the following statement for biosphere reserve is incorrect?

A
They are meant for preserving genetic diversity in representative ecosystem.

B
They are also notified as national parks.

C
Transition zone is legally protected as undisturbed ecosystem.

D
Important in conservation, development, scientific research and monitoring.
Solution
A biosphere reserve is a unique protected area which is different from a national park because:-
1) It is meant for the conservation of genetic resources, species and the ecosystem.
2) It helps in scientific research.
3) It also helps to promote sustainable development.
National parks are primarily for the conservation of species and secondarily for scientific research.
Biosphere reserve has three zones namely core area (includes protected areas), a buffer zone (surrounds and protects the core area) and transition zone (the large outer area where people live and work and use the natural resources of that area).
So, the correct answer is 'The transition zone is legally protected as undisturbed ecosystem'.
Question 5
1 / -0

In the above graph relation between species richness and area for a wide variety of taxa turns out to be a rectangular hyperbola on a logorithmic scale, the relationship shown by straight line. In which area slope of line to be much steeper.

A
Grass land

B
Temperature region

C
Tropical rain forests

D
Tundra

Solution

Species richness gives an idea of the number of different species present in an ecological landscape or area. It basically gives us an idea of the variety present. This parameter does not take into consideration the abundance of a species or the relative abundance of two or more species. In an ecological landscape, under ideal conditions, the species richness generally shows increasing trends with the increase in the area of the habitat. This is usually observed in the case of grasslands.
So,, the correct answer is 'Grass land.
Question 6
1 / -0

Find out the correct match from the following table :
Column-I Column-II Column.
(i) In situ conservation Botanical gardens Endemic species
(ii) Ex situ conservation Zoological parks Critically endangered
(iii) Narrowly utilitarian
pollination Direct economic benefit

A
i only

B
ii only

C
i and ii

D
ii and iii
Question 7
1 / -0

Following arrangement is correct from the point of view of decreasing biodiversity in angiosperms (N), fungi (F), pteridophytes (P) and algae (A).

A
N $$>$$ F $$>$$ P $$>$$ A

B
N $$>$$ F $$>$$ A $$>$$ P

C
F $$>$$ N $$>$$ P $$>$$ A

D
F $$>$$ N $$>$$ A $$>$$ P
Solution
- Biodiversity refers to all the variety of life that can be found on Earth (plants, animals, fungi, and micro-organisms) as well as to the communities that they form and the habitats in which they live.
- Fungi have the greatest biodiversity it anywhere (even on bread) grows without seeds and flowers.
- The angiosperms are diversified due to their many mutualistic relationships with pollinators, fungi, herbivores, and others.
- Algal diversity is estimated at the levels of the richness of species and of higher taxonomic ranks and as the variety of habitats algae dominate and their functional importance in the processes they mediate.
- The pteridophytes are the oldest land plants on earth. They are mostly a dominating and diverse group of pteridophytes throughout the world and include 300 genera and 12000 known species.
- So, the correct answer is option D.
Question 8
1 / -0

The albedo of the earth's surface is only about 4%, yet the combined albedo of the earth and the atmosphere is about 30%. Which set of conditions below best explains why this is so?

A
High albedo of clouds, low albedo of water

B
High albedo of clouds, high albedo of water

C
Low albedo of clouds, low albedo of water

D
Low albedo of clouds, high albedo of water
Question 9
1 / -0

Which continent is involved in glacier melting in mountainous regions?

A
Asia

B
Europe

C
Antarctica

D
North America
Question 10
1 / -0

According to theory of special creation which one is wrong?

A
All living organisms were created as such.

B
Diversity was same since the creation.

C
Diversity will increase as the changes in the environment come.

D
The Earth is about 4000 years ago.

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Re-Attempt Weekly Quiz Competition

	Column-I	Column-II	Column.
(i)	In situ conservation	Botanical gardens	Endemic species
(ii)	Ex situ conservation	Zoological parks	Critically endangered
(iii)	Narrowly utilitarian	pollination	Direct economic benefit

Biodiversity and Conservation Test - 83

Result

Biodiversity and Conservation Test - 83

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SHARING IS CARING

Question 1

(i) and (ii) only

(ii) and (iii) only

(i) and (iii) only

All of the above

Question 2

A-3, B-2, C-3

A-1, B-3, C-2

A-2, B-1, C-3

A-3, B-2, C-1

Solution

Question 3

3 : 1

2 : 1

1 : 3

1 : 2

Solution

Question 4

They are meant for preserving genetic diversity in representative ecosystem.

They are also notified as national parks.

Transition zone is legally protected as undisturbed ecosystem.

Important in conservation, development, scientific research and monitoring.

Solution

Question 5

Grass land

Temperature region

Tropical rain forests

Tundra

Solution

Question 6

i only

ii only

i and ii

ii and iii

Question 7

N $$>$$ F $$>$$ P $$>$$ A

N $$>$$ F $$>$$ A $$>$$ P

F $$>$$ N $$>$$ P $$>$$ A

F $$>$$ N $$>$$ A $$>$$ P

Solution

Question 8

High albedo of clouds, low albedo of water

High albedo of clouds, high albedo of water

Low albedo of clouds, low albedo of water

Low albedo of clouds, high albedo of water

Question 9

Asia

Europe

Antarctica

North America

Question 10

All living organisms were created as such.

Diversity was same since the creation.

Diversity will increase as the changes in the environment come.

The Earth is about 4000 years ago.

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