Which of the following pteridophytes is heterosporous?
Dryopteris
Pteris
Selaginella
Adiantum
Related Questions
First vascular plant is
Thallophyta
Bryophyta
Pteridophyta
Spermatophyta
Read carefully the following statement about the sexual reproduction in fernsI. Water is essential for fertilisationII. Male gametophyte bears antheridia, while female gametophyte bears archegonium, which produces antherozoids and egg cell, respectivelyIII. Antherozoids and egg cell fuses to give rise zygote. Zygote develops into young embryo. Embryo give rise to sporophyteWhich of the statements given above are correct?
I and II
II and III
I and III
I, II and III
Which of the following terms describes plants like Selaginella and Salvinia that produce both megaspores and microspores?
Homosporous
Heterosporous
Dioecious
Monoecious
The dominant generation in the life cycle of a Pteridophyte is:
Gametophyte
Sporophyte
Both gametophyte and sporophyte are equally dominant
None of the above
The main plant body in pteridophyte is
Sporophyte (2n) which is differentiated into root, stem and leaf
Sporophyte having no root, stem and leaf
Gametophyte (n) which is differentiated into root, stem and leaf
Gametophyte having no root, stem and leaf
In the life history of ferns, meiosis occurs at the time of
formation of spores
formation of antheridiaand archegonia
formation of gametes
germination of spores
Characteristic of fern is
Reproduction by seeds
Presence of flowers
Reproduction by spores
Presence of woody tissue
Which has vascular tissue, produces spores, but does not has seeds?
Bryophyta
Pteridophyta
Gymnosperms
Angiosperms
Fern gametophyte shows …… nature.
Homothallic
Fragmentation
Heterothallic
None of these
In which pteridophyte does the stem have a distinct 'siphonostele' with a central pith surrounded by vascular tissue?
Psilotum
Selaginella
Equisetum
Lycopodium
