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Which of the following forms pioneer com...

Which of the following forms pioneer community in hydrarch succession?

A

Wolfia

B

Phytoplanktons

C

Hydnilla

D

Bryophytes

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AAKASH INSTITUTE ENGLISH-TEST 1-Examplle
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  3. An aquatic plant which is pollinated by water is

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  4. An angiospermic plant has the following charecteristics.Identify the t...

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  5. Select the correct statements about apomitic seeds.a)these seeds are p...

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  6. Paethenocarpic fruits

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  7. A typical angiospermic seed consist of all,except

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  8. Persistent nucellus in the seeds of black pepper is called

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  9. Both autogamy and geitonogamy are prevented in

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  10. Select the odd w.r.t. the ploidy level of cells of embryo sac.

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  11. Generative cell of pollen grain

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  12. The outer layer of sporoderm which helps in fossilization of pollen gr...

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  13. The innermost layer of anther wall whose cells nourish the developing ...

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  14. If the chromosome number in a meiotically produced gamete of a plant i...

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  15. Male gametes require water to reach the female gamete in

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  17. Heterogametes are found in

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  18. In flowering plants,which of the following structures is present befor...

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  19. Pollen grains are the carrier of male gametes in

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  20. Syngamy does not occur outside the body of the organism in

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