What kind of circulatory system does the worm have?

The circulatory system of the worm is closed, the circulatory system of the worm resembles the circulatory system of the lancelet, which belongs to primitive animals. The blood itself can be of different colors depending on the type of food: some are red, some are colorless, and others are green.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.