The scientists believe that evolution is gradual. But extinction, part of evolutionary story, are 'sudden' and 'abrupt' and also group-specific. Comment whether a natural disaster can be the cause for extinction of species.
The scientists believe that evolution is gradual. But extinction, part of evolutionary story, are 'sudden' and 'abrupt' and also group-specific. Comment whether a natural disaster can be the cause for extinction of species.
Natural disaster like earthquake can cause extinction of species.
During the long period since the origin and diversification of life on earth there were five episodes of mass extinction of species.
Sudden extinction of highly flourished dinosaurs of Jurassic period of Mesozoic era in Cretaceous period ither due to hitting of the earth by an iridium rich meteorite or due to global cooling.
Similar Questions
Describe theory of natural selection ? Who gave this theory ?
Describe theory of natural selection ? Who gave this theory ?
What are the key concepts in the evolution theory of Darwin ?
What are the key concepts in the evolution theory of Darwin ?
Theory of natural selection was given by
Theory of natural selection was given by
Assertion : Human ancestors never used their tails and so the tail expressing gene has disappeared in them.
Reason : Lamarck's theory of evolution is popularly called theory of continuity of germ plasm.
Assertion : Human ancestors never used their tails and so the tail expressing gene has disappeared in them.
Reason : Lamarck's theory of evolution is popularly called theory of continuity of germ plasm.
- [AIIMS 2005]