Question

Statement-I: Evolution is not always progressive in nature.
Statement-II: The trend of evolution may be progressive or retrogressive.

• A. Only statement-I is correct
• B. Only statement-II is correct
• C. Both the statements are correct
• D. Both the statements are incorrect

Answer 1

The correct option is C Both the statements are correct

The process of evolution is not always progressive because it does not always lead to the formation of a new species; instead it leads to diversification. Evolution can be both progressive (formation of complex structures from simple structures) and retrogressive (formation of simple structures from complex structures). The formation of amphibians from fish is a progressive evolution, while the formation of flightless birds from flying birds is an example of retrogressive evolution.