6. Match the items in column I with those in column II:

Column I                               Column II

(a) Yeast                           (i) Earthworm

(b) Diaphragm                  (ii) Gills

(c) Skin                             (iii) Alcohol

(d) Leaves                        (iv) Chest cavity

(e) Fish                             (v) Stomata

(f) Frog                             (vi) Lungs and skin

                                         (vii) Tracheae 

7. Mark ‘T’ if the statement is true and ‘F’ if it is false:

(i) During heavy exercise the breathing rate of a person slows down. (T/F)

(ii) Plants carry out photosynthesis only during the day and respiration only at night. (T/F)

(iii) Frogs breathe through their skins as well as their lungs. (T/F)

(iv) The fishes have lungs for respiration. (T/F)

(v) The size of the chest cavity increases during inhalation. (T/F)