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Biodiversity and Conservation Test - 62

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Biodiversity and Conservation Test - 62
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Ex situ conservation is used for the  conservation of 
    Solution
    In wildlife conservation, whether in-situ or ex-situ, both plants and animals which are endangered and rare are conserved.
    So, the correct option is 'threatened animals and plants'.
  • Question 2
    1 / -0
    What parameters are used for tiger census in our country's national parks sanctuaries?
    Solution
    In our country, every year, the tiger census is carried out. this is to determine the number of tigers in our country. This is based on their pug marks and fecal pellets of the tigers. This allows to count their numbers and judge their species. 
    So, option B is the correct answer.
  • Question 3
    1 / -0
    With reference to the Aichi Biodiversity Targets, consider the following statements.
    $$1$$. It aims to bring pollution, including from excess nutrients to levels that are not detrimental to ecosystem function and biodiversity.
    $$2$$. It aims to control or eradicate invasive alien species on priority basis.
    Which of the statement(s) given is/are correct?
    Solution
    Aichi Biodiversity Targets have the following ideologies:-
    1. Strategic Goal A: Address the underlying causes of biodiversity loss by mainstreaming biodiversity across government and society.
    2. Strategic Goal B: Reduce the direct pressures on biodiversity and promote sustainable use.
    3. Strategic Goal C: To improve the status of biodiversity by safeguarding ecosystems, species, and genetic diversity.
    4. Strategic Goal D: Enhance the benefits to all from biodiversity and ecosystem services.
    5. Strategic Goal E: Enhance implementation through participatory planning, knowledge management, and capacity building.

    Strategic Goal B aims to bring pollution, including from excess nutrients to levels that are not detrimental to ecosystem function and biodiversity and it aims to control or eradicate invasive alien species on a priority basis.

    So the correct option is 'Both $$1$$ and $$2$$'.
  • Question 4
    1 / -0
    Which of the following wetlands is represented by as many as three protected areas, namely a National Park, Wildlife Sanctuary and Marine Sanctuary?
    Solution
    Bhitarkanika is a unique habitat of Mangrove Forests crisscrossed with numerous creeks and mud flats located in Kendrapara district of Orissa. One of the largest Mangrove Eco systems in India, Bhitarkanika is home to diverse flora and fauna. Bhitarkanika located between 86’-45” To 87’17” East longitude and 20’-17” to 20’-47” North latitude in the estuary of Brahmani, Baitarani, Dharma & Mahanadi river systems, has unique attraction and a boast of nature’s most picturesque sites. The unique bio-diversity attracts visitors to nature’s lap. The wetland is represented by as many as 3 protected Areas, namely “The Bhitarkanika National Park”, “The Bhitarkanika Wildlife Sanctuary” and “The Gahirmatha Marine Sanctuary”.

    So the correct option is 'Bhitarkanika'.
  • Question 5
    1 / -0
    Which one of the following strongly threatens biodiversity?
    Solution
    Loss of habitat or destruction which is a result of increasing human population in the region has put heavy pressure on the food requirements.
    So, the correct option is 'Destruction of mutual habitats and vegetation and shifting cultivation'.
  • Question 6
    1 / -0
    Which of the following ways is most likely to decrease the genetic diversity in a population?
    Solution
    • Genetic diversity is the total number of genetic characteristics in the genetic makeup of a species. For example, The genetic diversity shown by the medicinal plant Rauwolfia vomitoria growing in different Himalayan ranges might be in terms of the potency and concentration of the active chemical (reserpine) that the plant produces. 
    • Genetic variation is an important force in evolution as it allows natural selection to increase or decrease the frequency of alleles already in the population.
    • Stabilizing natural selection is most likely to decrease the genetic diversity in a population because the frequency of alleles remains constant in stabilized natural selection.
    • So, the correct answer is 'Stabilising natural selection'.
  • Question 7
    1 / -0
    In laboratory experiments, two special of the protest paramecium (species 1 and 2) were grown along and in the presence of the other species. The following graphs show growth of species 1 and species 2, both alone and when in mixed culture with the other species. 
    Which of the following conclusions can be drawn from the graphs?

    Solution
    When species 1 was kept with species 2, its number of individuals fell drastically while species 2 was kept with species, its number of individuals was not much affected Hence, booth species are affected by inter-specific competition but species 2 is less affected.
  • Question 8
    1 / -0
    Which of the following are not in-situ conservation?
    $$1$$. Zoological Park
    $$2$$. Sanctuaries
    $$3$$. Botanical garden
    $$4$$. National Park
    Select the correct answer using the codes given.
    Solution
    In-situ conservation is the on-site conservation or the conservation of genetic resources in natural populations of plant or animal species. It is the process of protecting an endangered plant or animal species in its natural habitat, either by protecting or restoring the habitat itself or by defending the species from predators. Examples - Sanctuaries and National Parks.

    Ex situ conservation literally means, "off-site conservation". It is the process of protecting an endangered species, variety or breed, of plant or animal outside of its natural habitat; for example, by removing part of the population from a threatened habitat and placing it in a new location, which may be a wild area or within the care of humans.  Examples - Zoological Park and Botanical Garden.

    So the correct option is '1 and 3'.

  • Question 9
    1 / -0
    The Earth Summit held at Rio de janeiro in 1992 resulted into
    Solution
    the Earth summit which took place in Rio de Janeiro Brazil in 1992 was related to conservation of biodiversity which is a raging topic now.
    So, the correct option is 'Convention on Biodiversity'
  • Question 10
    1 / -0
    An ex situ conservation method for endangered species is 
    Solution
    In situ conservation is the production and management of important components of biological diversity through a network of protected areas. This can be wildlife sanctuaries, national parks, biosphere reserves etc.
    Ex situ conservation is the conservation of selected rare plants or animals in places outside the natural forms.
    Ex-situ conservation includes off-site collection and gene banks. Ex situ conservation is conserving the animals and plant outside the natural habitat. 
    Ex situ conservation includes offsite collection and gene banks.
    Offsite collections are the live collection of file and domesticated species in the botanical garden.
    Gene bank is an institution where available plant material is preserved in a viable condition.
    Seed Bank stores seed in viable state Cryopreservation is preserving things in liquid nitrogen.
    Zoos or zoological parks are places where animals are kept in captivity and bred.

    So, the correct option is 'Cryopreservation'

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