Question

what is closed organ system???​

Answer 1

Answer:

Closed circulatory system: is found in vertebrates and a few invertebrates like earthworms. This system has vessels that conduct blood throughout the body..

ᎶᎧᎧᎴᏁᎥᎶᏂᏖ<♡

Answer 2

Answer:

Humans have a closed circulatory system. The blood is enclosed in the vessels and the heart while circulating. The blood travels through arteries and veins and carries important molecules throughout the body.

Hello Didi ^_______^