Question

What set Darwin and Wallace's concept of natural selection apart from earlier ideas of evolution?

A) All of the above

B) Their concept suggested that life forms change over time, whereas earlier ones did not

C) Their concept included the idea that traits are passed on to offspring, whereas earlier ones did not

D) Their concept depended on a process by which differences in phenotypic traits cause some individuals to be more "fit" than others, depending on the environmental circumstances