| Read the following five statements (I to V) and. select the option with all correct statements. [NEET 2015] |
| I. Mosses and lichens are the first organisms to colonise a 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 sporophyte. |
A) I, III and IV
B) II, III and IV
C) I, IV and V
D) II, III and V
Correct Answer: C
Solution :
| [c] I, IV and V are correct statements. |
| II. Selaginella species are creeping or ascendant plants and produce heterospores (megaspores and microspores). |
| III. Coralloid roots are developed in Cycas. It produces as cluster at base of stem. It is dichotomously branched and greenish brown |
| in colour. It contains algal zone in the cortex. |
| This algal zone contains Nostoc and Anabaena which grow in symbiotic association with coralloid root. |
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