- AAlgae increase the level of dissolved oxygen in the immediate environment.
- ✓Algin is obtained from red algae, and carrageenan from brown algae.
- CAgaragar is obtained from Gelidium andGracilaria.
- DLaminaria and Sargassum are used as food.
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$(i)$ Cilium / Flagellum contains an outer ring of nine doublet microtubules surrounding two singlet microtubules.
$(ii)$ Cilia are smaller which work like oars, causing the movement of either the cells or surrounding fluid.
$(iii)$ Flagella are comparatively longer and responsible for cell movement.
$(iv)$ Cilium and flagellum are covered with plasma membrane. Which of the above statements are correct?
$(A)$ 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?