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  • Read the following statements                

Read the following statements

             I.     All movements are locomotions but all locomotions are not movements

            II.    Methods of locomotion performed by animals vary with their habitats and                     the demand of the situation. 

          III.   Locomotion is generally for the search of food, shelter, mate, suitable                        breeding grounds, favourable climatic conditions or to escape from                        enemies/predators.

           IV.     In plants, movements are seen but locomotion is absent

 Choose the correct set of incorrect statements

Option: 1

I\; and\; II


Option: 2

II  only 


Option: 3

II\: and\: IV


Option: 4

I  only


Answers (1)

best_answer

 

 

Movement V/s Locomotion -

  • Movement is one of the significant features of living beings. 
  • Animals and plants exhibit a wide range of movements. 
  • Movement of cilia, flagella and tentacles are shown by many organisms.
  • Human beings can move limbs, jaws, eyelids, tongue, etc. 
  • Some of the movements result in a change of place or location. 
  • Such voluntary movements are called locomotion.
  • Walking, running, climbing, flying, and swimming are all some forms of locomotory movements. 
  • Locomotory structures need not be different from those affecting other types of movements.
  • For example, in Paramoecium, cilia help in the movement of food through cytopharynx and in locomotion as well. 
  • Hydra can use its tentacles for capturing its prey and also use them for locomotion. 
  • We use limbs for changes in body postures and locomotion as well. 
  • The above observations suggest that movements and locomotion cannot be studied
  • separately. 
  • The two may be linked by stating that all locomotions are movements but all movements are not locomotions.
  • Methods of locomotion performed by animals vary with their habitats and the demand of the situation. 
  • However, locomotion is generally for the search of food, shelter, mate, suitable breeding grounds, favourable climatic conditions or to escape from enemies/predators.
     

-

 

 

 

Locomotion and movements may be linked by stating that all locomotions are movements but all movements are not locomotions. Hence the correct option is I only

Posted by

sudhir.kumar

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