PLEASE HELP ME PLEASE if you could just answer one of these questions that would be amazing!

Idon’t understand this page, can someone ?

Which statement best describes the function of enzymes?

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)