Lamarck's theory of evolution is also called

What are the key concepts in the evolution theory of Darwin ?

Contribution of scientist :

$(a)$ Charles Darwin

$(b)$ Lamarck

How Biological evolution has taken place ?
 

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.