Question

from which group of animal has an open circulatory system is present

Answer 1

A closed circulatory system is sealed off, and does not allow blood to mix with other bodily fluids. Animals such as arthropods and mollusks possess an open circulatory system. Arthropods are a group of animals that include insects and crustaceans. Mollusks are a group that includes clams and oysters.

Answer 2

The group of animal have open circulatory system is arthropoda