You are presented with the question "When does macroevolution over eras occur?" and the following answer choices: 
- relocation
 - colder and wetter
 - in a few years
 - permineralization
 - over eras of time
 - within a lifetime
 - Continents drifting
 - in minutes

Now knowing that macroevolution is evolution over geologic time above the level of the species and geologists break time down into geologic time units called eras , choose the best answer.


 

     over eras of time    