EVERYDAY SCIENCE

Detailed explanation-1: -Which organism has an open circulatory system? Insects have an open circulatory system. Unlike humans, the blood in insects flows freely throughout the body.

Detailed explanation-2: -Hemolymph returns to the blood vessel through openings called ostia. Arthropods, such as this bee and most mollusks, have open circulatory systems.

Detailed explanation-3: -Unlike the closed circulatory system found in vertebrates, insects have an open system lacking arteries and veins. The hemolymph thus flows freely throughout their bodies, lubricating tissues and transporting nutrients and wastes.

Detailed explanation-4: -Open circulatory systems can be found in arthropods which include organisms such as insects, lobsters, and crabs and mollusks such as octopuses, oysters, snails, and slugs.

Detailed explanation-5: -The open circulatory system is found in arthropods such as insects and mollusks such as snails and octopuses.