MCQ
Monocarpic plants are those which:
- ABear flowers with one ovary.
- BFlower once and die.
- CBear only one flower.
- DAll of the above.
Explanation:
Monocarpic plants are those plants that flower once during their life time, set seeds and then die, e.g., bamboos.
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$A.$ 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.
| $(a)$ Descending limb of Henle's loop | $(i)$ Reabsorption of salts only |
| $(b)$ Proximal Convoluted tubule | $(ii)$ Reabsorption of water only |
| $(c)$ Ascending limb of Henle's loop | $(iii)$ Conditional reabsorption of sodium ion and water |
| $(d)$ Distal convoluted tubule | $(iv)$ Reabsorption of ion, water and organic nutrients |
Select the correct option from the following
