Segmented worms, also known as annelids, have a circulatory system. They possess a closed circulatory system, which consists of blood enclosed within vessels. Examples of segmented worms include earthworms and leeches. In contrast, flatworms (like planarians) have a simpler diffusion-based transport system, and roundworms (like nematodes) have a pseudocoelom that does not consist of a true circulatory system.
What type of worm has a circulatory system?
Flatworms
Segmented worms
Roundworms
Nematodes
1 answer