Q. No.What is the function of the gemmae produced by some liverworts?
1. a water gathering structure
2. a light gathering structure
3. a sexual structure
4. an asexual structure
1. a water gathering structure
2. a light gathering structure
3. a sexual structure
4. an asexual structure
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The life cycle of Ectocarpus, Polysiphonia and kelps is:
1.Diplontic
2.Haplontic
3.Aplantic
4.Haplo-diplontic
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Bryophytes are attached to the substratum by rhizoids that are:
| 1. | Unicellular | 2. | Multicellular |
| 3. | Acellular | 4. | Unicellular or multicellular |
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Sexual reproduction takes place through flagellated gametes that are similar in size in:
1. Ulothrix
2. Spirogyra
3. Volvox
4. Fucus
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Ecologically important first colonizers of rocks are:
| 1. | Lichens | 2. | Algae |
| 3. | Gymnosperms | 4. | Angiosperms |
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Which of the following classes of algae store food that is chemically very similar to amylopectin and glycogen?
| 1. | Chlorophyceae | 2. | Phaeophyceae |
| 3. | Rhodophyceae | 4. | All algae |
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The cell wall polysaccharides of some red algae are the source of:
1. a sugar substitute
2. a source of salt
3. glucose for the study of photosynthesis
4. agar for growing bacteria and other organisms
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Evolutionarily, the first terrestrial plants to possess vascular tissues are:
| 1. | Bryophytes | 2. | Pteridophytes |
| 3. | Gnetales | 4. | Cycads |
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All the following are characteristics of bryophytes except:
1. spore producing
2. dominant gametophyte
3. lignified tissues
4. producing antheridium and archegonium
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