You are presented with the question "what kind of circulatory system can some segmented animals have?" and the following answer choices: 
- organ
 - insects
 - made
 - warm
 - three
 - complex
 - closed
 - epidermal

Now knowing that annelids have the amazing capacity to regrow segments that break off and annelids have closed circulatory systems, choose the best answer.


 

       closed  