1, Just like every single living animal on earth.
the heart is the main circulatory organ of the frog
Cockroaches do have circulatory systems, they are are open circulatory systems
Circulatory system
Circulatory system
In a frog, five visible organ systems include the circulatory system, respiratory system, digestive system, excretory system, and nervous system. The circulatory system consists of the heart and blood vessels, while the respiratory system features lungs and skin for gas exchange. The digestive system includes the stomach and intestines, the excretory system comprises the kidneys and bladder, and the nervous system is represented by the brain and spinal cord. These systems work together to maintain the frog's overall health and functionality.
There are many differences between cow's and human's circulatory systems. The cow system has to work around 4 stomachs for example.
Circulatory system
The circulatory system affects the other body systems because the circulatory system gives oxygen to the other system. Without the circulatory system the other systems would not work.
There are two main types of circulatory systems:1. Open2. ClosedIn an open circulatory system, blood mixes with internal organs directly. Organisms with this type of system do not have a true heart or capillaries. Instead of a true heart, there are blood vessels that act as pumps to force the blood along. Instead of capillaries, blood vessels join directly with open sinuses.In a closed circulatory system, blood is pumped through a closed system of arteries, veins, and capillaries.(:
systems
Circulatory systems operates blood circulation
open circulatory systems