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. |
1. | I, III and IV | 2. | II, III and IV |
3. | I, IV and V | 4. | II, III and V |
Assertion (A): | The spread of living pteridophytes is limited and restricted to narrow geographical regions. |
Reason (R): | Gametophytic plant bodies in pteridophytes need sandy soil to sustain till maturity. |
1. | (A) is true but (R) is false |
2. | (A) is false but (R) is true |
3. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
4. | Both (A) and (R) are true but (R) is not the correct explanation of (A) |