Tag: biodiversity on earth and in india

Questions Related to biodiversity on earth and in india

The total number of species of plants, animals and microorganisms living on the Earth is called as

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. Biodiversity

  2. Flora

  3. Fauna

  4. Ecosystem

Show answer
Correct Option: A
Explanation:

Biodiversity is the term given to the variety of life on Earth. It is the variety within and between all species of plants, animals and micro-organisms and the ecosystems within which they live and interact. Thus, the correct answer is option A.

The term alpha diversity refers to 

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. Genetic diversity

  2. Community and ecosystem diversity

  3. Species diversity

  4. None of the above

Show answer
Correct Option: B
Explanation:

Whittaker's idea was that the total species diversity in a landscape is the gamma diversity and is determined by two different things, the mean species diversity in sites or habitats at a more local scale is an alpha diversity and the differentiation among those habitats is the beta diversity. 

Alpha diversity was defined by Whittaker (1972) as the species richness of a place. However, the practical development of this concept led to redefine the alpha diversity on the basis of the structure of the community. 
Thus, the correct answer is option B.

Biodiversity-rich areas are the 

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. Hotspots

  2. Plants

  3. Animals

  4. None of the above

Show answer
Correct Option: A
Explanation:
A biodiversity hotspot is a region of the earth that is extremely biologically diverse. The forest serves as the reservoir of biodiversity containing different species of plants, animals and all other sorts of living organisms. Many forests include a very rich diversity of species including most rare and prior to extinct species. Thus, the correct answer is option A.

The variety of forms of life found in a region is called as

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. Biodiversity

  2. Flora

  3. Fauna

  4. Endemic

Show answer
Correct Option: A
Explanation:

Biodiversity is the variability among living organisms from all sources, including terrestrial, marine, and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species, and of ecosystems. Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play.

So, the correct answer is 'Biodiversity'.

Given below are a few statements related to biodiversity. Pick those that correctly describe the concept of biodiversity.

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. Biodiversity refers to the different species of flora and fauna present in an area

  2. Biodiversity is greater in a forest

  3. Biodiversity refers to the total number of individuals of a particular species living in an area

  4. Both A and B 

Show answer
Correct Option: D
Explanation:

Biodiversity refers to the different species of flora and fauna present in an area. It is a term coined to describe the immense variety and richness of life on this planet. The word was coined in 1985 and during the 1990s has become very widely used in the scientific circles. So, the correct answer is option D.

Which of the following shows the maximum diversity?

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. Algae

  2. Fungi

  3. Pteridophytes

  4. Bryophytes

Show answer
Correct Option: B

The term biodiversity implies only to organisms living in/on

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. Land

  2. Forest

  3. Water

  4. All of the above

Show answer
Correct Option: D
Explanation:

The term biodiversity means all life forms present all over the world, it implies to all organisms whether they live on land and water. Thus the correct answer is option D. 

The term alpha diversity refers to

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. Genetic diversity

  2. Community and ecosystem diversity

  3. Species diversity

  4. Diversity among the plants

Show answer
Correct Option: B
Explanation:
Alpha diversity, present within community diversity is a species diversity in a given community or habitat and is dependent upon species richness and evenness. There is a lot of competition, adjustments and interrelationships amongst members of the same community
So, the correct answer is 'Community and ecosystem diversity'

How does the level of biodiversity change as an individual moves from the north pole to the equator? 

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. The biodiversity increases and then decreases.

  2. The biodiversity decreases and then increases.

  3. The biodiversity increases.

  4. The biodiversity does not change significantly.

  5. The biodiversity rapidly decreases.

Show answer
Correct Option: C
Explanation:

Biodiversity increases as one moves from North pole towards the equator. The North pole has an extremely cold climate that requires specialized adaptations for organisms to dwell, moreover resources are few.

As we move towards the equator natural resources in the form of precipitation, producers and a climate that is conducive to support a variety of flora and fauna increases and hence diversity increases.
So, the correct answer is 'The biodiversity increases.'

Which is accepted by researchers as a level of biodiversity?

I.   Species biodiversity
II.  Genetic biodiversity 
III. Ecosystem biodiversity 

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. I only

  2. II onIy

  3. I and II only

  4. II and III only

  5. I, II and III

Show answer
Correct Option: E
Explanation:

  • Researchers have accepted three levels of biodiversity, namely genetic biodiversity, species biodiversity, and ecosystem biodiversity. All three levels are interrelated.
  • Genetic diversity includes variety at the level of genes. It is measured at various levels like population, species, community, and biome.
  • Species diversity includes variety in the species. It is the easiest method of studying diversity. Each species has a particular role in the ecosystem.
  • Ecosystem diversity includes diversity that deals with species distribution, community patterns, the role of key species and species interactions.
     
Thus, the correct answer is option E.