Lamarck's theory contains how many postulates?

The correct answer is: Four

• Jean-Baptiste de Lamarck was a French biologist who proposed the Lamarck theory.
• In this theory, he described four postulates.
• The main postulate was the 'transmission of the acquired character', according to this the acquired trait are heritable by the offspring.
• The second postulate was 'use and disuse of organ' in this the organs not in use become useless and later are suppressed.
• The third postulate about 'speciation' according to this, every new generation has some new characteristics which get accumulated for generation and lead to the formation of new species.
• In the fourth postulate,' new need', the animals show changes in behavior and habits as the changes in the environment occur.