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The World of Living Test - 7

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The World of Living Test - 7
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Identify the incorrect pair of joint type and its example.
    Solution
    Joints between two vertebrae are gliding joints. A pivot joint is found between the skull and the first two vertebrae of the vertebral column.
  • Question 2
    1 / -0
    In which part of the human skeleton are bow-shaped bones found?
    Solution
    The rib cage is made up of bow-shaped bones that are curved. Most of them are joined to the backbone at the back and the breastbone at the front.
  • Question 3
    1 / -0
    The tissue that holds two bones together is called a
    Solution
    A ligament holds two bones together. It helps to keep the bones stable.
  • Question 4
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    Which of the following statements about locomotion in animals is/are correct?

    (a) Locomotion helps animals to move in search of food.
    (b) Locomotion enables animals to move from unfavourable place to a favourable place.
    (c) Locomotion helps animals to escape from their predators.
    (d) Locomotion helps animals to find their partners for reproduction.
    Solution
    This is the correct answer as all the statements are correct. Locomotion helps animals to move in search of food, move from unfavourable place to a favourable place, escape from their predators, and find their partners for reproduction.
  • Question 5
    1 / -0
    The freely movable joints allow the free movement of bones in various directions. Which of the following is not an example of a freely movable joint?
    Solution
    This is the correct answer as the joint between adjacent vertebrae is not an example of a freely movable joint. It is a kind of slightly movable joint.
  • Question 6
    1 / -0
    A joint in which a bone rotates around another is a pivot joint. Which of the following is a pivot joint?
    Solution
    This is the correct answer as this joint is a pivot joint. This joint allows the head to move backward, forward and to turn to right and left.
  • Question 7
    1 / -0
    Which of the following act in pairs in the human body?
    Solution
    This is the correct answer as muscles always act in pairs. They possess the property of contraction and relaxation. When one muscle contracts, the other relaxes.
  • Question 8
    1 / -0
    Which of the following is/are the function(s) of the skeletal system?

    (a) The skeletal system protects the vital organs from injury and trauma.
    (b) The skeletal system provides form and shape to the body.
    (c) The skeletal system provides a surface to which muscles are attached.
    Solution
    This is the correct answer. The skeletal system protects the vital organs from injury and trauma. The skeletal system also provides form and shape to the body, and provides a surface to which muscles are attached.
  • Question 9
    1 / -0
    Which of the following protect(s) our lungs from injury and trauma?
    Solution
    This is the correct answer. The lungs are located in the rib cage. The rib cage protects the lungs from any kind of injury or trauma.
  • Question 10
    1 / -0
    A rigid internal skeleton system consisting of bones is found in
    Solution
    This is the correct answer. Fishes have endoskeleton system, i.e. it is a structure that holds an animal from inside.
  • Question 11
    1 / -0
    ___________ has a streamlined body for locomotion.
    Solution
    This is the correct answer. Fish has a streamlined body, i.e. it tapers at the two ends, which helps the fish to swim.
  • Question 12
    1 / -0
    The ____________ is an aquatic animal whose skeleton is made entirely of cartilage.
    Solution
    This is the correct option. The skeleton in shark is made entirely of cartilage. Cartilage is a strong and durable material, but also lightweight and relatively flexible. These characteristics aid in the general movements of the shark in a variety of ways.
  • Question 13
    1 / -0
    The body of which of the following animals is covered by a hard shell?
    Solution
    This is the correct answer. The body of the snail is covered by a shell. The outer skeleton of the snail, the shell, is made of calcium carbonate. The role of this shell is to provide protection.
  • Question 14
    1 / -0
    Which of the following options is not a way of movement shown by penguins?
    Solution
    Penguins are flightless birds. The movements shown by them on land are waddling and walking. In water, they swim efficiently.
  • Question 15
    1 / -0
    Which of the following are the hardest substances present in the skeletal system of our body?
    Solution
    Skeletal system provides framework to the body. Cartilages are not very hard and are present in the parts where movement is required. Ligament is the fibrous tissue joining two bones. Joints are the parts which allow the movement between particular body parts. It is the bones which are the hardest substance. They are made of calcium salts and provide framework to the body.
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