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

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

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

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

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

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

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

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

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

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Q. Male gamates reach to embryo sac by help of

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

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Q. Class of angiosperm which contain two cotyledon are called

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Q. Pine is a

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

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Q. Species of Mimosaceae which help breaking wind pressure are

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Q. Unequal branches of stem which grew unequally at different rates given rise to different planes, this development is

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Q. Fruit is developed from ovary wall and

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Q. A seed may be defined as a fertilized

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Q. Most successful group of seed plants are

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Q. Sporophytes which are differentiated into roots, stem and true leaves, constitute plants of

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