6.Evolution
medium

Jurassic period of the mesozoic era is characterised by

A

flowering plants and first dinosaurs appear

B

gymnosperms are dominant plants and first birds appear

C

radiation of reptiles and origin of mammal like reptiles

D

dinosaurs become extinct and angiosperms appear.

(AIPMT-2006)

Solution

(b) : Jurassic period of mesozoic era is characterised by gymnosperms as dominant plant and the appearance of first toothed bird. Conifers, cycads and ferns were widespread.

Standard 12
Biology

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