Page 2 - HA
P. 2

(c) Both A and B
                      (d) Only B

               Q7.  Identify the correct examples of ureotelic organisms.
                      (a) human beings
                      (b) birds, reptiles
                      (c) fishes, birds
                      (d) human beings, fishes

               Q8.  Name the process which helps in cooling our body when the temperature is high.
                      (a) Diffusion
                      (b) Egestion
                      (c) Sweating
                      (d) Excretion

               Q9     The examples of ammonotelic organisms are -
                      (a) human beings, birds
                      (b) birds, reptiles
                      (c) fishes
                      (d) human beings, fishes

               Q10  In amoeba, excretion takes place through the process of -
                      (a) Diffusion
                      (b) Infusion
                      (c) Uricotelic
                      (d) None of the above





               SUBJECTIVE

                                                                                            Marks      Level


               Q1  Define excretion.                                                            1        E

               Q2  Why is excretion important?                                                                                                                              1   E


               Q3  State one difference between ammonotelic and ureotelic                       1        Av
                     organisms.

               Q4  (a)  Differentiate between uricotelic and ureotelic organisms.               3        Av
                     (b)  How does excretion take place in unicellular organisms such
                         as amoeba?
   1   2   3