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The gametophyte of fern bears
Gametophyte is free living, photoautoptrophic thalloid also called prothallus. Prothallus bears rhizoids, antheridia and archegonia on its under surface.
Sporangia and spore bearing leaf in fern is called as
On sporophylls either on dorsal or on ventral side bear sporangium e.g., Pteris, Dryopteris etc.
Which of the following is known as ‘resurrection plant’?
In dry conditions, the plant rolls up in to a compact ball and during the rainy conditions the ball on absorbing moisture be comes green again. Such plants are called resurrection plants.
Neck canal cells are absent in archegonia of –
The plant body of moss (Funaria) is
Resin canals and mucilage canal of gymnosperms are example of-
Resin canals and mucilage canal of gymnosperms are example of lysigenous cavity.
Endosperm in Gymnosperm is formed –
Endosperm in Gymnosperm is formed before fertilization.
In Gymnosperm, endosperm is formed by –
The endosperm of Gymnosperm is-
Fruits are not formed in Gymnosperms because of –
Fruits are not formed in Gymnosperms because of absence of ovary.