The life cycle of Ectocarpus, Polysiphonia and kelps is:
1.Diplontic
2.Haplontic
3.Aplantic
4.Haplo-diplontic

Subtopic:  Life Cycle Patterns in Plants (OLD NCERT) |
 82%
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Bryophytes are attached to the substratum by rhizoids that are:

1. Unicellular 2. Multicellular
3. Acellular 4. Unicellular or multicellular
Subtopic:  Bryophytes |
 67%
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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

Subtopic:  Algae | Chlorophyceae: Green Algae |
 73%
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Ecologically important first colonizers of rocks are:

1. Lichens 2. Algae
3. Gymnosperms 4. Angiosperms
Subtopic:  Bryophytes |
 91%
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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
Subtopic:  Rhodophyceae: Red Algae and Importance of Algae |
 77%
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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

Subtopic:  Algae |
 77%
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Evolutionarily, the first terrestrial plants to possess vascular tissues are:

1. Bryophytes 2. Pteridophytes
3. Gnetales 4. Cycads
Subtopic:  Pteridophytes |
 93%
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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

Subtopic:  Bryophytes |
 87%
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Oogamous sexual reproduction is seen in:

1. Ulothrix 2. Spirogyra
3. Udorina 4. Fucus
Subtopic:  Algae |
 82%
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The gymnosperms, Pines, are unique because they produce:

1. leaves in fascicles 2. true leaves
3. cones 4. archegonia
Subtopic:  Gymnosperms |

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