MCQ
Both vessels and companion cells are absent in
- AAngiosperms
- BPteridophyta
- CGymnosperms
- ✓In $(b)$ and $(c)$
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$(A)$ Inliverworts,mossesandferns gametophytes are freeliving.
$(B)$ Gymnosperms and some ferns are heterosporous.
$(C)$ Sexual reproduction in Fucus, Volvox andAlbugo is oogamous.
$(D)$ The sporophyte in liverworts is more elaborate than that in mosses.
$(E)$ Both, Pinus and Marchantia are dioecious. How many of the above statements are correct?
$R$ : In protein, only right handed helices are observed.