Tag: zoology

Questions Related to zoology

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

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

  1. 12.1%

  2. 18.1%

  3. 38.1%

  4. 8.1%

Show answer
Correct Option: D
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%'.

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

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

  1. Extinct

  2. Endangered

  3. Vulnerable

  4. Rare

Show answer
Correct Option: B
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'.

Regional diversity is also called

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. Ecosystem diversity

Show answer
Correct Option: B
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'.

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

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

  1. $1.8 \%$

  2. $2.4 \%$

  3. $8.1 \%$

  4. $4.2 \%$

Show answer
Correct Option: C
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%'.

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

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

  1. Mutation

  2. Gene flow

  3. Bottle neck effect

  4. Random mating

Show answer
Correct Option: C

Quinine is obtained from

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

  1. Leaves of Cinchona

  2. Roots of Cinchona

  3. Bark of Cinchona

  4. Seeds of Cinchona

Show answer
Correct Option: C
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.

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

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

  1. Ecotone effect

  2. Edge effect

  3. Border effect

  4. Complementary effect

Show answer
Correct Option: B
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.

A tiger will think twice before attacking this animal, even though it is alone. Which is it ?

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

  1. Nilgai

  2. Wild dog

  3. Wild buffalo

  4. Chital

Show answer
Correct Option: C
Explanation:

The tiger (Panthera tigris) is the largest cat species, reaching a total body length of up to 3.38 m (11.1 ft) over curves and weighing up to 388.7 kg (857 lb) in the wild. Its most recognizable feature is a pattern of dark vertical stripes on reddish-orange fur with a lighter underside. The species is classified in the genus Panthera with the lion, leopard, jaguar and snow leopard. Tigers are apex predators, primarily preying on ungulates such as deer and bovids.  The wild  buffalo (Bubalus arnee), also called Asian buffalo and Asiatic buffalo, is a large bovine native to the Indian Subcontinent and Southeast Asia.
Tigers will be mostly killed by wild buffaloes, when they both fight. So, a tiger will have to think twice before attacking wild buffalo.

Genetic diversity will be more common in organisms with 

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

  1. Parthenogenesis

  2. Sexual reproduction

  3. Asexual reproduction

  4. Parthenocarpy

Show answer
Correct Option: B
Explanation:

Genetic diversity refers to the variety of genes within a species. Each species is made up of individuals, that have their own particular genetic composition. Within a species there may also be discrete populations with distinctive genes. 

Asexual reproduction results in no new gene configurations, so the offspring is genetically identical to the parent. 
Sexual reproduction results in an offspring, that receives genes from two parents. The advantage of sexual reproduction occurs when the two parents come from different populations. This way the genetic info is the combination of two parents from two separate populations. This is why young male lions are kicked out of the pride and why it is illegal to marry your cousin, as this insures genetic diversity.

The conservation of local (endemic) varieties of crops is must because

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

  1. These are source of genes for genetic diversity.

  2. These are high yielding and nutritious.

  3. We want to conserve all plants and animals of the past for our knowledge.

  4. All of the above.

Show answer
Correct Option: A
Explanation:

Genetic diversity refers to the variety of genes within a species. Each species is made up of individuals that have their own particular genetic composition. Within a species there may also be discrete populations with distinctive genes. Sexual reproduction is critical for maintaining genetic diversity within a species, because it combines the parents genetic material, resulting in offspring with unique genetic blue prints different from either parent. 

The conservation of local varieties are important, as they provide genes for genetic diversity.