Tag: levels of biodiversity

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

The relation between species richness and area is correctly depicted by

  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
Reveal answer Fill a bubble to check yourself
C Correct answer
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'.

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

Which scientist proposed alphaα types species diversity?

  1. Bentham and Huxley

  2. Linnaeus

  3. Whittaker

  4. Eichler
Reveal answer Fill a bubble to check yourself
C Correct answer
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'.

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

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

  1. $\alpha$ - diversity
  2. $\beta$ - diversity

  3. Gamma diversity

  4. Delta diversity
Reveal answer Fill a bubble to check yourself
A Correct answer
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'.

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

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

  1. Adventives species

  2. Introduced species

  3. Naturalized species

  4. Domesticated species
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Species whose evolutionary trajectory, selection pressures, and breeding have been actively shaped by humans to fulfill specific agricultural, economic, or companionship needs are known as domesticated species.

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

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

  1. Tea

  2. Teak

  3. Mango

  4. Wheat
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

India is considered a center of origin for many crops, and wheat shows significant genetic diversity in the region. While mango also has high diversity, wheat is a classic example in agricultural biology curricula.

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

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

  1. A

  2. B

  3. C

  4. D
Reveal answer Fill a bubble to check yourself
D Correct answer
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'. 

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

Select an incorrect statement about biodiversity.

  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.
Reveal answer Fill a bubble to check yourself
A Correct answer
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'.

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

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

  1. 3 : 1

  2. 2 : 1

  3. 1 : 3

  4. 1 : 2
Reveal answer Fill a bubble to check yourself
B Correct answer
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.'

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

Choose the wrong statement.

  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.
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

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

  1. Malthus

  2. Edward

  3. Lamarck

  4. Darwin
Reveal answer Fill a bubble to check yourself
B Correct answer
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.