Set the characteristics of the pond snail’s circulatory system to compare with the circulatory system of an earthworm.
| December 12, 2020 | education
The circulatory system of the pond snail is represented by a two-chambered heart, consisting of an atrium and a ventricle, and blood vessels. Arterial blood flows from the lung into the atrium, then into the ventricle, and from it, enters the other organs. The circulatory system of the worm is closed, well-developed, blood has red. The earthworm has two main blood vessels: the dorsal and the abdominal.
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