Strobili or cones are found in : (1) Salvinia (2) Pteris (3) Marchantia (4) Equisetum
Which of the following pairs is of unicellular algae : (1) Laminaria and Sargassum (2) Gelidium and Gracilaria (3) Anabena and Volvox (4) Chlorella and Spirulina
Phycoerythrin is the major pigment in (1) Brown algae (2) Red algae (3) Blue green algae (4) Green algae
Which one of the following statements is wrong? (a) Chlorella and Spirulina are used as space food. (b) Mannitol is stored food in Rhodophyceae. (c) Algin and carrageenan are products of algae. (d) Agaragar is obtained from Gelidium and Gracilaria.
Select the correct statement. (a) Sequoia is one of the tallest trees. (b) The leaves of gymnosperms are not well adapted to extremes of climate. (c) Gymnosperms are both homosporous and heterosporous. (d) Salvinia, Ginkgo and Pinus all are gymnosperms.
Which one of the following statements is wrong? (a) Algae increase the level of dissolved oxygen in the immediate environment. (b) Algin is obtained from red algae, and carrageenan from brown algae. (c) Agaragar is obtained from Gelidium and Gracilaria. ( ...
Life cycles of Ectocarpus and Fucusrespectively are (a) diplontic, haplodiplontic (b) haplodiplontic, diplontic (c) haplodiplontic, haplontic (d) haplontic, diplontic.