Evolution Question 123

123. Jurassic period of the mesozoic era was characterised by

[2006]

(a) Radiation of reptiles and origin of mammal-like reptiles

(b) Dinosaurs become extinct and angiosperms appeared

(c) Flowering plants and first dinosaurs appeared

(d) Gymnosperms were dominant plants and first birds appeared

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Answer : d

Hints & Solution

(d) Jurassic period of meoszoic era was about 19-20 crore years ago & lasted for about 5.56 crore years. The climate was hot and damp. It is called the age of dinosaurs. Ist primitive bird Archaeopteryx evolved from reptiles. Ist angiosperm appeared as a dicotyledon but gymnosperms were dominant.