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
Subtopic:  Pteridophytes |
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Evolutionarily, the first terrestrial plants to possess vascular tissues are:

1. Bryophytes 2. Pteridophytes
3. Gnetales 4. Cycads
Subtopic:  Pteridophytes |
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Which of the following does not belong to the class Pteropsida?

1. Dryopteris 2. Adiantum
3. Pteris 4. Lycopodium
Subtopic:  Pteridophytes |
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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
Subtopic:  Pteridophytes |
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A plant has a diploid sporophyte as the dominant, independent, photosynthetic, vascular body. It alternates with multicellular, saprophytic/autotrophic, independent but short-lived haploid gametophyte. This plant most likely belongs to:
1. Red algae 2. Bryophytes
3. Pteridophytes 4. Gymnosperms
Subtopic:  Pteridophytes |
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