Which one of the following is not a living fossil?

1. King crab

2. Sphenodon

3. Archaeopteryx

4. Peripatus

Subtopic:  Concept of Speciation | Genetic Basis of Adaptation |
 55%
AIPMT - 2006
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Jurassic period of the Mesozoic era is characterised by:

1. gymnosperms, adminant plants, and first birds appear
2. radiation of reptiles and the origin of mammal-like reptiles
3. Dinosaurs become extinct and angiosperms appear
4. flowering plants and the first dinosaurs appear

Subtopic:  Concept of Speciation | Genetic Basis of Adaptation |
AIPMT - 2006
Please attempt this question first.
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