Fact 1: Annelids have the amazing capacity to regrow segments that break off.

Fact 2: Annelids have closed circulatory systems.

Given the two facts above, answer the question "what kind of circulatory system can some segmented animals have?" with the following options: 
- organ
 - insects
 - made
 - warm
 - three
 - complex
 - closed
 - epidermal


 

       closed  