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Diversity in Living Organisms Test - 58

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Diversity in Living Organisms Test - 58
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  • Question 1
    1 / -0
    Bubbler is 
    Solution
    Bubbler is a thick layer of adipose tissue under the skin of a whale, in order to keep its vital organs warm in cold conditions. The high lipid concentration helps in maintaining the body heat.
    So, the correct option is 'Subcutaneous fat of whale'.
  • Question 2
    1 / -0
    A monkey with prehensile tail is
    Solution
    The prehensile tail of an animal is one which is able to hold or grasp objects. The monkey with a prehensile tail is called spider monkey. It is found in tropical forests of Central and South America. They are usually found living in the upper layers of rainforests.
    So, the correct answer is 'Spider Monkey'.
  • Question 3
    1 / -0
    Which one is not exclusively marine ?
    Solution
    D. Dolphin
    EXPLANATION: Dolphins can be seen around the world. They can live in saltwater as well as in freshwater locations. Seal, Walrus and Whale are exclusively marine animals.
  • Question 4
    1 / -0
    Cavity lodging lungs is
    Solution
    The thoracic cavity is an airtight chamber which lodges the lungs. It is guarded dorsally by the vertebral column, ventrally be sternum, laterally by ribs and on the lower side by the diaphragm.
    Thoracic chamber should be airtight in order to maintain different air volumes in the lungs at different phases of respiration. Any change in the thoracic volume will be reflected in the pulmonary volume.
    So the correct option is "Thoracic".
  • Question 5
    1 / -0
    Which is not an odd digitate pentadactylous ?
    Solution
    Odd digitated pentadactylous animals are the ones that have 5 digits or 5 toes. Zebra, Donkey, Rhinoceros are the examples.
    Camels are exceptions because they only have two large, even-sized toes which are padded. This adaptation helps them to walk in the desert sand.
    So the correct answer is 'Camel'.
  • Question 6
    1 / -0
    Largest and heaviest mammal of the world is:
    Solution
    Mammals are vertebrates and warm-blooded animals. 
    The blue whale is a marine mammal, weighing about 173 tonnes and 29.9 meters in length. It is the largest animal known to have ever existed.
    So, the correct option is 'Blue whale.'
  • Question 7
    1 / -0
    Marsupials occur in
    Solution
    Marsupials are the members of the mammalian class Marsupialia. All marsupials are endemic to Australia. A distinctive trait common to these species is that they are mammals giving birth to immature young ones and develop them in their pouches. Some examples of marsupials are kangaroo, koala, etc.
    So, the correct option is 'Australia'.
  • Question 8
    1 / -0
    Sonar system is found in
    Solution
    Bats and Whales use an advance echolocation system or SONAR system to communicate and hunt their prey. It involves production of ultrasonic waves which then reflect back from any obstacles on their paths.
    Otters use sounds like grunts, whistles, growls, snarls, cooing, etc for communication.
    So the correct answer is 'Both B and C'. 
  • Question 9
    1 / -0
    Number of cervical vertebrae in Camel / Whale / Giraffe is
    Solution
    Almost all mammals (with few exceptions like sloths and manatees) have seven cervical vertebrae independent of their sizes. Hence Camel, Whale, and Giraffe though have a huge difference in the sizes, have the same number of cervical vertebrae.
    So the correct answer is '7'. 
  • Question 10
    1 / -0
    Whale is mammal because it has
    Solution
    All mammals possess some exclusive characteristics:
    1. Mammary glands
    2. Vivipary (except monotremes)
    3. Diaphragm
    4. Protruded scrotum (most mammals)
    So, the correct answer is 'All of the above'.
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