Question
Read the following five statements $(A$ to $E)$ and select the option with all correct statements.

$A.$ Mosses and lichens are the first organisms to colonise a bare rock.

$B.$ Selaginella is a homosporous pteridophyte.

$C.$ Coralloid roots in Cycas have $VAM$.

$D.$ Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic.

$E.$ In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte.

Answer

a
(a) : Selaginella is a heterosporous pteridophyte. Corralloid roots of Cycas harbour blue green algae like Nostoc, Anabaena and are not a type of $VAM$ (vesicular arbuscular mycorrhiza) which is a symbiotic association with fungus.

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