No oysters do not have a closed circulatory system. They have something known as a open circulatory system. They are similar to that of fish. They have something similar to that of the gills in fish so that they are able to function in the aquatic environment. The closed circulatory systems, are usually in the terrestrial animals such as mammals, birds etc.
No, octopuses have a closed circulatory system, while snails, oysters, and sponges do not. Snails and oysters possess an open circulatory system, where blood flows freely through cavities. Sponges, on the other hand, lack a circulatory system entirely, relying on the movement of water through their porous bodies for nutrient and waste transport.
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.
Brown bear have a close circulation system
closed circulatory system
Worms have a closed circulatory system because they inherited it from their ancestors.
A double closed circulatory system.