A critical component to Darwin's concept of evolution was his proposal of a mechanism to explain how species change through time and how they become better adapted to their local environments.
(A critical component to Darwin's concept of evolution; was; his proposal of a mechanism) (they; become adapted; better) (a mechanism; to explain; how species change through time and how they become better adapted to their local environments) Context(a mechanism to explain,List([74, 96))):(species; change; T:through time)
a mechanism to explain,List([74, 96))
A critical component to Darwin's concept of evolution they a mechanism species
was become adapted to explain change
his proposal of a mechanism
better
how species change through time and how they become better adapted to their local environments
T:through time