Fact 1: Macroevolution occurs over geologic time above the level of the species.

Fact 2: And geologic time is very, very slow.

Given the two facts above, answer the question "Macroevolution occurs how above the level of the species." with the following options: 
- swiftly
 - slowly
 - quickly
 - forces
 - never
 - ferns
 - animals
 - three


 

  slowly       