Tag: levels of biodiversity

Questions Related to levels of biodiversity

The relation between species richness and area is correctly depicted by

zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

  1. log S = log C - Z log A

  2. log S = Z log A

  3. log S = log C + Z log A

  4. log S = log C

  5. log C = log S + Z log A

Show answer
Correct Option: C
Explanation:

The relationship between the area of a habitat, or of part of a habitat, and the number of species found within that area is described by the species-area curve. It says that log S = log C + Z log A. Here S is the number of species, A is the habitat area, and Z is the slope of the species-area relationship. Larger areas tend to contain larger numbers of species.
So, the correct answer is 'log S = log C + Z log A'.

Which scientist proposed alphaα types species diversity?

zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

  1. Bentham and Huxley

  2. Linnaeus

  3. Whittaker

  4. Eichler

Show answer
Correct Option: C
Explanation:

The local species pool is known as alpha diversity. It is also the diversity present within the community. The term was introduced by R. H. Whittaker. Example of such diversity includes high tree diversity throughout the Amazon Rainforests of Ecuador. Generally, gamma diversity = alpha diversity x beta diversity.

So, the correct answer is 'Whittaker'.

The number of taxa present within a particular area or an ecosystem is

zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

  1. $\alpha$ - diversity

  2. $\beta$ - diversity

  3. Gamma diversity

  4. Delta diversity

Show answer
Correct Option: A
Explanation:

The number of taxa present within a particular area or an ecosystem is called alpha diversity. It is also the diversity present within the community. The term was introduced by R. H. Whittaker. Example of such diversity includes high tree diversity throughout the Amazon Rainforests of Ecuador. Generally, gamma diversity = alpha diversity x beta diversity.

So, the correct answer is 'α - diversity'.

The species in which the evolutionary process has been influenced by man to meet his need is called.

zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

  1. Adventives species

  2. Introduced species

  3. Naturalized species

  4. Domesticated species

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Correct Option: A

Which one of the following has maximum genetic diversity in India ?

zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

  1. Tea

  2. Teak

  3. Mango

  4. Wheat

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Correct Option: D

Ten species (i) to (x) sampled in four areas  $A-D$ having $11-13$ habitats (given in brackets) possess populations (in thousands) given in the table. Which one has the maximum species diversity

(i) (ii) (iii) (iv) (v) (vi) (vii) (viii) (ix) (x)
A (11) 2.3 1.2 0.52 6.0 - 3.1 1.1 9.0 - 10.3
B (11) 10.2 - 0.62 - 1.5 3.0 - 8.2 1.1 11.2
C (13) 11.3 0.9 0.48 2.4 1.4 4.2 0.8 8.4 2.2 4.1
D (12) 3.2 10.2 11.1 4.8 0.4 3.3 0.8 7.3 11.3 2.1
zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

  1. A

  2. B

  3. C

  4. D

Show answer
Correct Option: D
Explanation:

A) The given region does not have much species richness. 

B) The given region has the least species richness. 
C) The region has the second largest (sum total) of species richness. 
D) The region has the most species richness (by adding up the columns). 
So the correct answer is 'D'. 

Select an incorrect statement about biodiversity.

zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

  1. Mountain peaks are more diverse than foot hills.

  2. Valley's are more diverse than mountain peaks.

  3. Shade sides are more diverse than sun sides of mountains.

  4. Western ghats are more diverse than eastern ghats.

Show answer
Correct Option: A
Explanation:

Valleys, shade side of mountains and western ghats have more trees and water resources where more diverse fauna and flora may be present due to the availability of their life-sustaining resources comparing with the others. Foothills, when compared with the mountain peak, are more diverse because mountain peaks are at higher altitude there is more sunlight, less water or we can say no water and also colder climate when compared to foothills so it will mostly be covered with either snow or there will exist a grassland.


So the correct option is 'A'.

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

zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

  1. 3 : 1

  2. 2 : 1

  3. 1 : 3

  4. 1 : 2

Show answer
Correct Option: B
Explanation:

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.'

Choose the wrong statement.

zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

  1. Species diversity increases as we move away from the equator towards the poles.

  2. Stellar's sea cow and passenger pigeon got extinct due to over exploitation by man.

  3. Lantana and Eicchornia are invasive weed species in India.

  4. The historic 'Convention on Biological Diversity' was held in 1992.

  5. Among animals insects are the most species rich taxonomic group.

Show answer
Correct Option: A
Explanation:

Statement A is incorrect as species diversity decreases and not increases as we move away from the equator towards the poles temperature decreases and conditions becomes harsh, vegetation decreases and less resources available to support species. 

Statement B is correct as Stellar's sea cow and passenger pigeon had extinct which is because of over exploitation by man. 
Statement C is correct as Lantana and Eicchornia are invasive weed species in India. These weeds invades disturbed natural ecosystems and adversely affects biodiversity. The weed is distributed throughout India.
Statement D is correct as the historic 'Convention on Biological Diversity' was held in 1992, Biodiversity Convention which is a multilateral treaty. 
Statement E is correct as among animals insects are the most species rich taxonomic group, they are most abundant species among animals.
Therefore, the correct answer is option A.

"Human Genetic Diversity: Lewontin's Fallacy" is a 2003 paper by

zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

  1. Malthus

  2. Edward

  3. Lamarck

  4. Darwin

Show answer
Correct Option: B
Explanation:

"Human Genetic Diversity: Lewontin's Fallacy" is a 2003 paper by A. W. F. Edwards. He criticises an argument first made by Richard Lewontin in his 1972 article "The Apportionment of Human Diversity", which argued that division of humanity into races is taxonomically invalid. Edward's critique is discussed in a number of academic and popular science books, with varying degrees of support. 

Therefore, the correct answer is option B.