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.
I, III and IV
II, III and IV
I, IV and V
II, III and V
Statement I is correct: Mosses along with lichens are the first organisms to colonise rocks . Statement II is incorrect: Selaginella is a heterosporous pteridophyte (produces two kinds of spores) . Statement III is incorrect: Coralloid roots in Cycas are associated with N2-fixing cyanobacteria, while mycorrhiza (fungal association) is found in Pinus . Statement IV is correct: The main plant body in bryophytes is the haploid gametophyte , while in pteridophytes, it is the diploid sporophyte . Statement V is correct: In gymnosperms, the male and female gametophytes do not have an independent existence and remain within the sporangia retained on the sporophytes .
Join thousands of students and practice with AI-generated mock tests.