- AMyelinated fibre.
- BNon-myelinated fibre.
- CGrey fibres.
- DNone of these.
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$II.$ Nitrogenous waste are absorbed by active transport
$III.$ Conditional reabsorption of $Na ^{+}$and water takes place in $DCT$
$IV.$ $DCT$ reabsorbs glucose
$V.$ $DCT$ is capable of selective secretion of $H ^{+}, K ^{+}$and $NH _{3}$ to maintain $pH$ and $Na ^{+}- K ^{+}$ balance in blood
$VI.$ Substances like glucose, amino acids, $Na ^{+}$, etc, in the filtrate are reabsorbed actively
Choose the option with incorrect statements
$(A)$ In Equisetum, the female gametophyte is retained on the parent sporophyte.
$(B)$ In Ginkgo, male gametophyte is not independent.
$(C)$ The sporophyte in Riccia is more developed than that in Polytrichum.
$(D)$ Sexual reproduction in Volvox is isogamous.
$(E)$ The spores of slime moulds lack cell walls.How many of the above statements are correct?