In $Dryopteris$,the antherozoids are

  • A
    Biflagellate sickle-shaped
  • B
    Multiflagellate sickle-shaped
  • C
    Multiflagellate spirally coiled
  • D
    Biflagellate spirally coiled

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$(b)$ It has bilobed leaves.
$(c)$ It is nitrogen-fixing.
$(d)$ It is a climber.
$(e)$ It has Aerenchyma in the ventral lobe of the leaf.

Which of the following possess vascular tissues but lacks seeds?

Which pteridophyte is called as horse-tail?

$A:$ In Pteridophytes,spores are produced in sporangia. $R:$ In Pteridophytes,sporangia are subtended by leaf-like appendages called sporophylls.

Indusium is found in

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