4th Class Science Animals Question Bank Animals

  • question_answer The graph below show the relationship between two organisms.
    (a) What is the relationship between the two organisms P and Q?
    (b) During which period do you think organism M was introduced?
    (c) What new food chain forms between organisms P, Q and M?
     

    A)

      (a) (b) (c)
      Prey- Predator X \[P\to Q\to M\]
                   

    B)       

      (a) (b) (c)
      Producer-Consumer Y \[M\to Q\to P\]
                   

    C)       

      (a) (b) (c)
      Producer-Consumer Z \[Q\to P\to M\]
                   

    D)       

      (a) (b) (c)
      Prey - Predator z \[Q\to M\to P\]
             

    Correct Answer: D

    Solution :

    (a) 'P' is prey and 'Q' is predator because population of 'P' increases with increase in population of 'Q'.
    (b) When graph 1 and graph 2 are compared, graph 2 shows changes during period 'Z', therefore, organism 'M' was introduced during this period.
    (c) Graph 2 shows that on introduction of 'M', population of 'P' increases and population of 'Q' goes down, thus, 'Q' is eaten by 'M' and 'M' is eaten by 'P'.
     

adversite


You need to login to perform this action.
You will be redirected in 3 sec spinner

Free
Videos