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Selaginella and Salvinia are considered ...

Selaginella and Salvinia are considered to reprsent a significant step toward evolution of seed habit because

A

female gametophyte is free and gets dispersed like seeds

B

female gametophyte lacks archegonia

C

megaspores possess endosperm and embryo surrounded by seed coat

D

embryo develops in female gametophyte which is retained on parent sporophyte

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-PLANT KINGDOM-EXERCISE-III
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  2. Cycas and Cicer resemble each other in having

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  3. Which one of the following is correctly matched?

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  4. Eustele is present in

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  5. Which one of the following pairs is wrongly matched?

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  6. Consider the following four statements A)The sporophyte in liverwort...

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  7. Selaginella and Salvinia are considered to reprsent a significant step...

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  8. Which one of the following plants is monoecious ?

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

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

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  11. Which one of the following is considered important in the development ...

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

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  13. Spore dissemination in some liverworts is aided by

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  14. Peat moss is used as a packing material for sending flowers and live p...

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  15. Ectophloic siphonostele is found in

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  16. Which one of the following pairs of plants are not seed producers?

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

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  18. Which of the following plants produces seeds but not true flowers ?

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  19. Cycas has two cotyledons but not included in angiosperms because of

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  20. Plant group with largest ovule, largest tree and largest gametes is

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