if they didn't, how would they absorb blood from external sources?
though, if the blood enters their circulatory system is another question.
Leeches has a closed circulatory system just like other animals. They usually circulate foods and gases through the coelomic fluids in their bodies.Ê
Amphibians have closed circulatory system Closed
closed circulatory system (double circulatory system)
Yes it has a closed circulatory system
closed circulatory system
Sea otters have a closed circulatory system.
Platypuses have a closed circulatory system.
closed circulatory system.
Leeches are classified in phylum Annelida because they have segmented bodies with repeated body segments. They also have a closed circulatory system and belong to the subclass Hirudinea within the phylum Annelida.
Brown bear have a close circulation system
closed circulatory system
Worms have a closed circulatory system because they inherited it from their ancestors.