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Ashwini
Blazing goIITian

Joined: 4 Nov 2007
Posts: 1524
13 Mar 2008 14:04:33 IST
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well..actually even i'm not sure.......but a qn regarding this has cum in the paper .........so best way is to see qns related to this...............
the qns is....
choose and arrange any four of the following groups of plants in ascending order of evolution scale:
cycads,gnetales,monocotyledons,rhynia-like,chlorophyta ancestors,dicotyledons and seed ferns
ans- chlorophyta ancestors---->rhynia-like------>seed ferns------>cycads----->gnetales--------->dicotyledons-------->monocotyledons
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