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Study the following life cycle of Pterid...

Study the following life cycle of Pteridophytes:-

How many structure represent gametophytic & sporophytic generations, respectively?

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The correct Answer is:
Gametophytic structures=six [Spore, gametophyte, antheridia, archegonia, male gamete and female gamete]
Sporophytic structure=Six [Zygote, embryo, sporophyte, sporophylls, sporangia and spore mother cells]
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ALLEN-DIVERSITY OF THE LIVING WORLD-Exercise
  1. Match the column I and with Column II

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  2. Which one of the following is heterosporous?

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  3. Study the following life cycle of Pteridophytes:- How many struct...

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  4. Read the following informations and identify the genus * Coralloids ...

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  5. Match the column I with Column II:-

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  6. The spread of living pteridophytes is limited and is restricted to nar...

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  7. Female cone to Mega sporophylls to Megasporongia to Megaspores For a...

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  8. Identify the name of processes (A&B) in the given sequence Microspor...

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  9. In gymnosperms, the male and the female gametophytes do not have an in...

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  10. In gymnosperms, the nucellus is protected by envelops and the composit...

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  11. How many cells are there in an embryo sac?

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  12. Write the names of male and female sex organs of angiosperms respectiv...

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  13. In how many classes angiosperms are divided?

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  14. Ovules, stamen, ovary, carpel, anther, antipodals, synergids, Pollen g...

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  15. Angiosperms range in size from tiny, almost microspic e.g. (A) to tall...

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  16. Total number of nuclei involved in double fertilization is

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  17. Write down the ploidy level of followings regarding typical angiosperm...

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  18. After fertilization, what is the future of the following:- (A) Ovule...

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  19. Identify the A,B,C, D & E in given life cycle of an angiosperm:-

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  20. Many algae such as volvox, spirogyara and some species of Chlamydomona...

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