What is Cosmic evolution ?

Cosmic Evolution: The Rise of Complexity in Nature is a book by Harvard astrophysicist Eric Chaisson. It examines cosmic evolution which includes the history of natural evolution from the Big Bang to the present from the perspective of the emerging multi-scientific discipline of Big History.

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.