(a) Gigartina                           (b) Gelidium (c)  Gracillaria                         (d) All the above Ans. d (9)
(a) Polysiphonia                     (b) Postelsia (c)  Ectocarpus                        (d) Macrocystis Ans. b (16)
(a) Fritsch                               (b) Papenfus (c)  Smith                                (d) Morris Ans. a (8)
(a) Algae                                 (b) Fungi (c)  Bacteria                            (d) All the above Ans. a (56)