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 ?
Contribution of scientist :
$(a)$ Charles Darwin
$(b)$ Lamarck
Contribution of scientist :
$(a)$ Charles Darwin
$(b)$ Lamarck
Comment on the statement that ''evolution and natural selection are end result or consequence of some other processes but themselves are not processes''.
Comment on the statement that ''evolution and natural selection are end result or consequence of some other processes but themselves are not processes''.
Explain theory of inheritance of acquired characters with proper example.
Explain theory of inheritance of acquired characters with proper example.
Evolution means
Evolution means