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Living Organisms - Characteristics and Habitats Test 3

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Living Organisms - Characteristics and Habitats Test 3
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  • Question 1
    1 / -0
    Read the following statements and select the correct ones.

    (i) All living organisms grow.
    (ii) All living organisms perform respiration.
    (iii) 'Response to stimuli' is a defining property of living organisms.
    Solution
    All three statements are true.
    All living organisms grow in size. For example. young ones of animals grow into adults.
    All living organisms perform respiration. For example, all animals like cows, dogs, etc., take in oxygen, use it and then release the carbon dioxide produced in the process. Plants also perform respiration.
    All living organisms respond to stimuli. Stimuli are the changes in the environment to which living organisms respond. For example, leaves of touch-me-not plant, close or fold when someone touches them. Another example can be of cockroaches moving to their hiding places when lights are turned on.
  • Question 2
    1 / -0
    The key elements that determine differences in environmental conditions of different habitats include 
    Solution
    • The environment is the sum of all biotic (living) and abiotic (non-living) factors that surround and practically influence the organism. 
    • All components are interlinked and interdependent. 
    • Biotic factors include different organisms. 
    • Abiotic factors are non-living factors required for the survival, form, function, behaviour, and reproduction of organisms. 
    • There are many abiotic factors. The four major abiotic factors that determine differences in the environmental conditions of different habitats are temperature, water, light, and soil. 

    So, the correct answer is 'All of the above'.
  • Question 3
    1 / -0
    Which of the following is the habitat of the squirrel?
    Solution
    Squirrels are mostly herbivores and they live on trees. They can be traced from tropical rainforest to semi-arid desert.
    So, the correct answer is option C.
  • Question 4
    1 / -0
    Read the following statements, and find out the correct statements.
    (a) Human beings can move limbs, jaws, eyelids and lips.
    (b) Streaming of protoplasm in a unicellular organism like an amoeba is a simple form of movement.
    (c) Locomotion is a significant feature of living beings.
    (d) Movement of cilia, flagella are shown by many organisms.
    Solution
    • Human beings can move their limbs, jaws, eyelids, and lips. These movements are referred to as voluntary movements.
    • Streaming of Protoplasm in a unicellular organism like an amoeba is a simple form of movement as it allows them to move in a medium.
    • The movement of cilia, flagella are shown by many organisms ranging from algae, protozoa to certain animals in the animal kingdom.
    • However, locomotion is not a significant defining feature of living beings, for example, living organisms like sponges and plants do not locomote. 
    So, the correct answer is option D.
  • Question 5
    1 / -0
    Which of the following is not a harsh habitat?
  • Question 6
    1 / -0
    Which of the following cannot be called a habitat?
    Solution
    Habitat is said to be a natural environment where an organism lives. The grazing cattle do not live on the cultivated land. 
    So, the correct answer is option (d)  cultivated land with grazing cattle.

  • Question 7
    1 / -0
    Which of the following is a type of habitat?
  • Question 8
    1 / -0
    Boojho comes across an animal having a stream-lined and slippery body. What is the habitat of the animal?
    Solution
    Aquatic animals have streamlined and slipper body as it gets easier for them to swim through the water currents without damaging their bodies. 
    So, the correct answer is option (a) Water. 
  • Question 9
    1 / -0
    Cactus and camels are found in
    Solution
    • Camels and cactus are found exclusively in deserts.
    • Cactus and camels are adapted to low rainfall and in deserts, the amount of water available is very less.

    Hence, the correct option is B.
  • Question 10
    1 / -0
    Goats and yaks are seen in
    Solution
    Yaks and goats can be seen predominantly in the cold climatic areas in the mountains.
    Hence the correct option is A.
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