What is open circulatory system and closed circulatory system
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Answer:
Open circulatory system :
Open circulatory systems (evolved in insects, mollusks and other invertebrates) pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood.
Closed circulatory system :
In a closed circulatory system, the blood stays within blood vessels. In this way, blood is kept separate from body tissues. This system has a heart that pumps blood through a continuous circulation pattern. As such, the blood tends to be pumped at a higher pressure.
- Open circulatory system: primarily found in invertebrates. Here, the blood flows freely through cavities and there are no vessels to conduct the blood.
- Closed circulatory system: is found in vertebrates and a few invertebrates like earthworms. This system has the presence of vessels that conduct blood throughout the body.
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Circulatory system is a set of organs that transport nutrients between body cells. It protects the body from diseases and keeps the body 's temperature and tone constant. Transport is carried out by the circulatory system like amino acids, electrolytic, gases, hormones, blood cells, and the waste products of nitrogen. Only a few persons regard the blood distribution network as a vascular system, while others also insert the lymphatic system into it.