Fact 1: Algae have varied life cycles.

Fact 2: Some red algae are eaten by humans.

Given the two facts above, answer the question "Something eaten by humans have varied what?" with the following options: 
- story times
 - commutes
 - temperature
 - Plants growth
 - energy usage
 - life cycles
 - bedtimes
 - layers of fat


 

      life cycles   