Page 1 :
Algae, , 12., , 13., , 14., , 15., , 16., , 17., , 18., , Chlorophyll bearing, thalloid, simply, autotropic and mainly aquatic organisms are, , (a) Bryophytes (b) Protist (c) Algae (d) All of these, Filamentous forms of algae are, , (a) Ulothrix (b) Spirogyra (c) Chlamydomonas (d) Both (a) and (b), Volvox is a, , (a) Unicellular algae (b) Filamentous algae (c) Colonial algac (d) Symbiotic algae, The modes of reproduction found in algae are, , (a) Vegetative (b) Asexual (c) Sexual (d) All of these, Vegetative reproduction in algae is by, , (a) Binary fusion (b) Fragmentation (c) Budding (d) Cyst formation, Spore formation in algae occur during, , (a) Vegetative reproduction (b) Asexual reproduction, , (c) Sexual reproduction (d) During germination, , Isogamy is seen in, , (a) Chlamydomonas (b) Spirogyra (c) Both (a)and(b) (d) None of these, Algae possesing both isogamy and anisogamy is, , (a) Chlamydomonas (b) Volvox (c) Spirogyra (d) Fucus, , Male gamete is small and motile and female gamete is large and immotile in, , (a) Fucus (b) Spirogyra (c) Ulothrix (d) All of these, , 50 per cent CO, fixation on carth is carried out by, (a) Protist (b) Higher plants (c) Algae (d) None of these