Yes they do. The have 3 hearts.
worms mollusks
I only have three but here they are! 1.there are about 100000 species of mollusks. 2. An octopus has 3 hearts. 3. an oysters shell is made of calcium.
Mollusks, shrimp,and crustacens=) Mollusks, shrimp,and crustacens=) Mollusks, shrimp,and crustacens=) Mollusks, shrimp,and crustacens=)
Mollusks, shrimp,and crustacens=) Mollusks, shrimp,and crustacens=) Mollusks, shrimp,and crustacens=) Mollusks, shrimp,and crustacens=)
Mollusks are invertebrates because they do not have a backbone.
Mollusks are Eukaryotes
Raccoons eat mollusks. Otters eat mollusks. People eat mollusks.
Mollusks are not classified as mammals.
Cephalopods are the only mollusks with a closed circulatory system. They have two gill hearts (also known as branchial hearts) that move blood through the capillaries of the gills. A single systemic heart then pumps the oxygenated blood through the rest of the body. Like most molluscs, cephalopods use hemocyanin, rather than hemoglobin to transport oxygen
A zoologist or aquatic biologist might study mollusks. Malacology is the study of mollusks in zoology.
oysters
The only mollusks that are Gastropoda are slugs and snails.