Read the following five statements (I to V) and select the option with all correct statements. I: Mosses and lichens are the first organisms to colonise bare rock. II: Selaginella is a homosporous pteridophyte. III: Coralloid roots in Cycas have VAM. IV: Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic. V: In gymnosperms, male and female gametophytes are present within sporangia located on sporophytes.

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: