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Biodiversity and Conservation Test - 36

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Biodiversity and Conservation Test - 36
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Weekly Quiz Competition
  • Question 1
    1 / -0
    The largest endangered bird in India is
    Solution
    The Great Indian Bustard is a most endangered species of bird found only in India and adjoining region. Bustard is one of the largest flying species of bird with weight up to 15 kg and about 1 m tall from the ground. Due to heavily hunting and habitat loss, the bird is disappearing from the many regions of India. It is the state bird of Rajasthan. 
  • Question 2
    1 / -0
    Which one of the following may be the reason for extinction of plant species due to human activities?
    Solution
    • Extinction is the end of an organism or of a group of organisms, normally a species. 
    • Humans cause the extinction of a species through overharvesting, pollution, habitat destruction, invasion of invasive species, overhunting, and other influences. 
    • Although, earthquakes and diseases are the results of human activities it does not cause any extinction of plant species. 
    Therefore, the correct answer is option B.
  • Question 3
    1 / -0
    Species diversity in an ecosystem mainly depends on
    Solution
    Species diversity is a measure of the diversity within an ecological community that incorporates both species richness (the number of species in a community) and the evenness of species abundances and it varies from region to region and mainly depends on rainfall apart from other factors like temperature, light intensity etc. 
    Therefore, the correct answer is option C.
  • Question 4
    1 / -0
    The species of plants that play a vital role in controlling the relative abundance of other species in a community are called as
    Solution
    A keystone species is a plant or animal that plays a unique and crucial role in the way an ecosystem functions. Without keystone species, the ecosystem would be dramatically different or cease to exist altogether. All species in an ecosystem, or habitat, rely on each other. A keystone species' disappearance would start a domino effect. Other species in the habitat would also disappear and become extinct. The keystone species' disappearance could affect other species that rely on it for survival. For example, the population of deer or rabbits would explode without the presence of a predator. The ecosystem cannot support an unlimited number of animals, and the deer soon compete with each other for food and water resources. Their population usually declines without a predator such as a mountain lion. Without the keystone species, new plants or animals could also come into the habitat and push out the native species.
  • Question 5
    1 / -0
    These days in India, lion is found in
    Solution
    Lions once roamed Africa, Asia and Europe. However, now they are found in only two areas of the world and are classified into two subspecies. Asiatic lions also known as Indian lion, live in India's Gir forest; African lions live in central and southern Africa. Hence, option B is correct.
  • Question 6
    1 / -0
    "Kazi Ranga" is related to 
    Solution
    'Kaziranga National Park' is a national park in the Golaghat and Nagaon districts of the state of Assam, India. It is a world heritage site. The park hosts two-thirds of the world's great one-horned rhinoceroses.
  • Question 7
    1 / -0
    Pollution of air, water and soil affects the _______ of life and harms the ________
  • Question 8
    1 / -0
    Which one of the following is not included under in-situ conservation?
    Solution
    In-situ conservation is 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 cleaning up the habitat itself, or by defending the species from preadtors. Around 4% of the total geographical area of the country is used for in-situ conservation. The following methods are presently used for in-situ conservation is biosphere reserves, national parks and wild life sanctuaries. Botanical gardens are included under Ex-situ conservation. 
  • Question 9
    1 / -0
    _____ are the biodiversity-rich areas.
    Solution
    •  A biodiversity hotspot is a biogeographic region that is both extremely biologically diverse and is threatened with the destruction and extinction of various species.
    • Deserts and lakes suffering from eutrophication have the lowest biodiversity.

    Thus, the correct answer is option A.
  • Question 10
    1 / -0
    One of the most important functions of botanical gardens is that 
    Solution
    Ex-situ conservation is the technique of conservation of all levels of biological diversity outside their natural habitats through different techniques like zoo, captive breeding, aquarium, botanical garden, and gene bank. It plays key roles in communicating the issues, raising awareness, and gaining widespread public and political support for conservation actions and for breeding endangered species in captivity for reintroduction. 
    A botanic garden is an institution holding documented collections of living plants for the purposes of scientific research, conservation, display and education. A botanic garden has been defined as a garden containing scientifically ordered and maintained collections of plants, usually documented and labeled, and open to the public for the purposes of recreation, education and research.
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