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Heterospory i.e. formation of two types ...

Heterospory i.e. formation of two types of spores - microspores and megaspores is a characteristic feature in the life cycle of a few members of pteridophytes and all spermatophytes. Do you think heterospory has some evolutionary significance in plant kingdom?

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  1. Why are bryophytes called as amphibians of plant kingdom?

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  2. The male and female reproduction organs of serval pteridophytes and gy...

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  3. Heterospory i.e. formation of two types of spores - microspores and me...

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  4. How far does Selaginella one of the few living members of lycopodiales...

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  5. Each plant or group of plants has some phylogenetic significance in re...

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  6. The heterosporous pteridophytes show certain characteristic, which are...

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  7. Comment on the life cycle and nature of a fern prothallus.

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  8. How are the male and female gametophytes of pteriodophytes and gymnosp...

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  9. In which plant will you look for mycorrhiza and corolloid roots? Also ...

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  10. Gametophyte is a dominant phase in the life cycle of a bryophyte. Expl...

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  11. With the help of a schematic diagram describe the haplo-diptonic life ...

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  12. Lichen is usually cited as an example of 'symbiosis' in plants where a...

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  13. Explain why sexual reproduction in angiosperms is said to take place t...

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  14. Draw labelled diagrams of Female nd male thallus of a liverwort (mar...

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  15. Draw labelled diagrams of Gametophyte and sporophyte of Funaria.

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  16. Draw labelled diagrams of Alternation of generation in Angiosperms.

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  17. What are dimorphic leaves?

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  18. Define circinate ptyxis.

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  19. Explain briefly the following terms with suitable examples: sporophyll

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  20. Name a plant which is called living fossil

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