Q. Rhizoids fix prothallus to soil to absorb

View solution

Q. A spore germinates at a suitable temperature after falling on moist soil and produces a

View solution

Q. Irish people are completely depend for their nutrition on

View solution

Q. Female gametophyte develops into an egg after germination with healthy megaaspore and produce

View solution

Q. Male and female sex organs appear on sameprothallus in region of under surface, this property is

View solution

Q. Gymno sperms cannot produce

View solution

Q. Economically most important family which benefit both human and animal is

View solution

Q. An autotrophic, small, heart shaped and flat structure is called

View solution

Q. Structure of a sporophyte consists of a foot, seta and

View solution

Q. In atternation of generations, a haploid spermatozoid fuses with a haploid egg to produce diploid

View solution

Q. Around 15-20 million years is time, for evolution of a

View solution

Q. Sporophyte is dominant and gametophyte is small and reduced but separate as well as independent. This development shows heteromorphic alternation of generation

View solution

Q. Important well known ferns are Dryopteris, Pteries Pteridium and

View solution

Q. Horneophyton, psilophyto and cooksonia belong to Tracheophytes group called

View solution

Q. Leaf of a lycopodium is small and contains single undivided vascular supply, such leaf is called

View solution

Q. Male gamates reach to embryo sac by help of

View solution

Q. Branches of Crataegus give an excellent wood, which can be used to make

View solution

Q. Class of angiosperm which contain two cotyledon are called

View solution

Q. Pine is a

View solution

Q. A less conspicuous generation which partially or completely depend upon gametophyte for its nutrition is a

View solution