A prothallus is
1. | A structure in pteridophytes formed before the thallus develops |
2. | A sporophytic free living structure formed in pteridophytes |
3. | A gametophyte free living structure formed in pteridophytes |
4. | A primitive structure formed after fertilization in pteriodophytes |
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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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Which of the following does not belong to the class Pteropsida?
1. | Dryopteris | 2. | Adiantum |
3. | Pteris | 4. | Lycopodium |
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Consider the following statements:
I: | Pteridophytes are the first terrestrial plants to possess vascular bundles. |
II: | Main plant body in pteridophytes is sporophyte which is differentiated into true stem and leaves. |
III: | Genera like Selaginella and Salvinia are heterosporous. |
Which of the above statements are true?
1. | I and II only | 2. | I and III only |
3. | II and III only | 4. | I, II and III |
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1. | Red algae | 2. | Bryophytes |
3. | Pteridophytes | 4. | Gymnosperms |
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