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Which aquatic fern performs nitrogen fix...

Which aquatic fern performs nitrogen fixation :

A

Azolla

B

Nostoc

C

Salvia

D

Salvinia

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The correct Answer is:
A
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AAKASH INSTITUTE ENGLISH-PLANT KINGDOM -ASSIGNMENT SECTION -C (Previous Years Questions)
  1. Walking fern is named so as

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  2. Plants having vascular tissues but lacking seeds are

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  3. Which aquatic fern performs nitrogen fixation :

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  4. A well developed archegonium with neck consisting of 4 - 6 rows and ne...

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  5. Plants reproducing by spores such as mosses and ferns are grouped unde...

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  6. Which one of the following is a vascular cryptogam?

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  7. Heterospory and seed habit are often discuseed in relation to a struc...

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  8. What is common in all the three Funaria, Dryopteris and Ginkgo

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  9. From which part of the female cone the wing on the seed of Pinus is fo...

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  10. The smallest plant group gymnosperms has how many species ?

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  11. Which one of the following statements about Cycas is incorroct ?

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  12. Largest sperms in the plants world are found in

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  13. Transfusion tissue is present in the leaves of

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  14. The endosperm in gymnosperms is

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  15. Plant group with largest ovule, largest tree, and largest gamets:

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  16. Which of the following plants produces seeds but not flowers : -

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  17. Cycas has an embryo with two cotyledons yet it is not classified in di...

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  18. Which one of the following is a living fossil ?

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  19. Which of the following is without exception in Angiosperms : -

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  20. Which one of the following pairs of plants are not seed producers : -

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