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Equisetum, commonly called horsetail or ...

Equisetum, commonly called horsetail or scouring rush and exceptional pteridophyte, i.e., xylem with vessels, possesses the character of

A

Heterosporous

B

Autotrophic gametophyte

C

Biflagellate spermatozoid

D

Unjointed stem

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The correct Answer is:
B
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Read the following statements carefully (i) Protonema is found in mosses and is absent in liverworts. (ii) In Marchantia,the sporophyte is divided into the foot, seta and capsule (iii) Archegonia are partially embedded in pteridophytes (iv) Gymnosperms do not possess vessels in xylem except in some gnetophytes.

CENGAGE BIOLOGY ENGLISH-PLANT KINGDOM-ARCHIVES
  1. Equisetum, commonly called horsetail or scouring rush and exceptional ...

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  2. Flagellated male gametes are present in all the three of which one of ...

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  3. In the prothallus of a vascular cryptogam, the antherozoids and egg ma...

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  4. In gymnosperms, the pollen chamber represents

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  5. Spore dissemination in some liverworts is aided by

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  6. If you are asked to classify the various algae into distinct groups, w...

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  7. In which of the following, gametes are produced by mitrotic division?

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  8. In which one of the following male and female gametophytes do not have...

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  9. Which of the following is heterosporous

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  10. Selelct one of the following paris of important features distinguishig...

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  11. Which one of the following plants is monoecious?

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  12. Which one of the following has haplontic life cycle?

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

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

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  15. Male and female gametophytes are independent and free-living in

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  16. Algae have cell wall made up of

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  17. Some hyperthermophilic organisms that grow in highly acidic (pH 2) hab...

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  18. A prokaryotic autotrophic nitrogen fixing sym- biont-is found in

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  19. Archegoniophore is present in

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  20. Compared with the gametophytes of the bryophytes, the gametophytes of ...

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  21. The gametophyte is not an independent, free-living generation in

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