Read the following statements (A-E) and answer the question which follows them. A: In liverworts, mosses, and ferns gametophytes are free-living B: Gymnosperms and some ferns are heterosporous C: Sexual reproduction in Fucus, Volvox and Albugo is oogamous D: The sporophyte in liverworts is more elaborate than that in mosses E: Both, Pinus and Marchantia are dioecious How many of the above statements are correct?

From an evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in:

Which one of the following is the characteristic feature of gymnosperms?

Which of the following is incorrectly matched?

Match the plant with the kind of life cycle it exhibits: List-I (a) Spirogyra (b) Fern (c) Funaria (d) Cycas List-II (i) Dominant diploid sporophyte vascular plant, with highly reduced male or female gametophyte (ii) Dominant haploid free-living gametophyte (iii) Dominant diploid sporophyte alternating with reduced gametophyte called prothallus (iv) Dominant haploid leafy gametophyte alternating with partially dependent multicellular sporophyte

Selaginella and Salvinia are considered to represent a significant step towards the evolution of seed habit because:

Given are the following five statements (I - V) for your consideration: I: In Equisetum, the female gametophyte is retained on the parent sporophyte II: In Ginkgo, the male gametophyte is not independent III: The sporophyte in Marchantia is more developed than that in Polytrichum IV: Sexual reproduction in Volvox is isogamous V: The spores of slime moulds lack cell walls How many of the above statements is/are correct?

Match List-I with List-II: List-I A. Pteridophyte B. Bryophyte C. Angiosperm D. Gymnosperm List-II I. Salvia II. Ginkgo III. Polystrichum (Polytrichum) IV. Salvinia

A prokaryotic autotrophic nitrogen-fixing symbiont is found in: