Tag: biodiversity, classification and conservation

Quizzes (12) Questions (144)

Questions Related to biodiversity, classification and conservation

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

Which one has the largest species variety in India?

  1. Potato

  2. Maize

  3. Wheat

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

Species diversity is the number of different species that are represented in a given community. In India, rice has the largest species diversity or variety. India has 6,000 species variety of rice. The number has greatly reduced from before. The commonest rice is basmati rice.

So, the correct answer is 'Rice'.

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

Which of the following statements is correct?

  1. Species diversity, in general, increases from poles to the equator

  2. Conventional taxonomic methods are equally suitable for higher plants and microorganisms

  3. Indias share of global species diversity is about 18%

  4. There are about 25000 species of plants in India
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
In general, species diversity, in general, increases from poles to the equator. With very few exceptions, tropics (latitudinal range of 23.5° N to 23.5° S) harbor more species than temperate or polar areas. The reason is that tropical environments, unlike temperate ones, are less seasonal, relatively more constant and predictable. Such constant environments promote niche specialization and lead to greater species diversity.
So, the correct answer is 'Species diversity, in general, increases from poles to the equator'.
Multiple choice zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

Who observed that within a region, species richness increased with increasing explored area but only upto a limit?

  1. Paul Ehrlich

  2. David Tilman

  3. Alexander von Humboldt

  4. Edward Wilson

  5. Robert Mayr
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
During his pioneering and extensive explorations in the wilderness of South American jungles, the great German naturalist and geographer Alexander von Humboldt observed that within a regional species richness increased with the increasing explored area, but only up to a limit. In fact, the relationship between species richness and area for a wide variety of taxa (angiosperm plants, birds, bats, freshwater fishes) turns out to be a rectangular hyperbola. On a logarithmic scale, the relationship is a straight line described by the equation log S = log C + Z log A where S= Species richness A= Area Z = slope of the line (regression coefficient) C = Y-intercept.
So, the correct answer is 'Alexander von Humboldt'.
Multiple choice zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

India is one of the twelve megadiversity countries with ______ of genetic resources of the world.

  1. 12.1%

  2. 18.1%

  3. 38.1%

  4. 8.1%
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Although India has only 2.4 per cent of the world’s land area. But its share of the global species diversity is an impressive 8.1 percent. That is what makes our country one of the 12 megadiversity countries of the world. Nearly 45,000 species of plants and twice as many of animals have been recorded from India. 
So, the correct answer is '8.1%'.
Multiple choice zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

Black buck, golden langur and Asiatic wild ass are likely to be in danger of extinction. This species belongs to

  1. Extinct

  2. Endangered

  3. Vulnerable

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

Blackbuck, Golden langur, and Asiatic wild ass are likely to be in danger of extinction and are classified as endangered (as their population is decreasing) by IUCN red data list.

So, the correct answer is 'Endangered'.

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

Regional diversity is also called

  1. Alpha diversity

  2. Beta diversity

  3. Gamma diversity

  4. Ecosystem diversity
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Alpha diversity refers to the average species diversity of a habitat. Beta diversity is the diversity species between two habitats or regions and is given by the ratio between local (alpha species diversity) and regional species diversity. It is also known as the regional species diversity. Gamma diversity is the total diversity of a landscape.
So, the correct option is 'Beta diversity'.
Multiple choice zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

India is among $12$ megadiversity countries of world, due its percentage contribution in global species diversity, that is:-

  1. $1.8 \%$
  2. $2.4 \%$
  3. $8.1 \%$
  4. $4.2 \%$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Megadiversity refers to the diversity in various life forms. India is one of the megadiverse countries where diversity of global species is found. There are 4 biodiversity hotspots (the area where large species diversity is present) in India, they are:

  1. Himalaya
  2. Indo-Burma
  3. Sundaland
  4. The Western Ghats and Sri Lanka
In India, the total area under biodiversity hotspot is about 2.4 % and its contribution to global species diversity is about 7 - 8.5 %.
So, the correct option is '8.1%'.

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

Which evolutionary force decreases the genetic diversity of a population by increasing the proportion of smaller individuals?

  1. Mutation

  2. Gene flow

  3. Bottle neck effect

  4. Random mating
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The bottleneck effect occurs when a population's size is drastically reduced, leading to loss of genetic diversity as only certain individuals survive and reproduce. This reduces the gene pool. Mutation increases diversity, gene flow can increase diversity by introducing new alleles, and random mating maintains Hardy-Weinberg equilibrium.

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

Quinine is obtained from

  1. Leaves of Cinchona

  2. Roots of Cinchona

  3. Bark of Cinchona

  4. Seeds of Cinchona
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Quinine occurs naturally in the bark of the Cinchona tree, though it has also been synthesized in the laboratory. The medicinal properties of the Cinchona tree were originally discovered by the Quechua, who are indigenous to Peru and Bolivia, later the Jesuits were the first to bring Cinchona to Europe.

Thus, the correct option is C.

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

Tendency of increase of species diversity in transition zone between two community is called as

  1. Ecotone effect

  2. Edge effect

  3. Border effect

  4. Complementary effect
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In ecology, edge effects refer to the changes in population or community structures, that occur at the boundary of two habitats. Areas with small habitat fragments exhibit especially pronounced edge effects that may extend throughout the range. As the edge effects increase, the boundary habitat allows for greater biodiversity.