All of them. They all do a job that requires oxygen.
the urinary system
Circulatory system. (If it is a wrong answer, my apologies, wait for the proper answer)
the structure of the circulatory system is to transport oxygen to the body
blood
The circulatory system.
The circulatory system is more complex than the heart alone, as it encompasses a network of blood vessels, including arteries, veins, and capillaries, which work together to transport blood throughout the body. The heart functions as a pump within this system, driving the circulation of blood, but it relies on the intricate structure and function of the entire circulatory system to effectively deliver oxygen and nutrients to tissues. Therefore, while the heart is vital, the complexity of the circulatory system as a whole is greater.
Glomerulus
Yes The Heart Is The Main Organ Of The Circulatory System.
circulatory system
The circulatory system relies on the respiratory system to provide oxygen to the blood and remove carbon dioxide. It also depends on the digestive system to provide nutrients and energy for the body to function properly. Additionally, the circulatory system works closely with the immune system to transport white blood cells and antibodies to fight off infections and diseases.
The endocrine system relies on the circulatory system to transport the chemical compounds it produces, primarily hormones, to various target organs and tissues throughout the body. Hormones are secreted directly into the bloodstream by endocrine glands, such as the pituitary, thyroid, and adrenal glands, enabling communication and regulation of numerous physiological processes. This integration allows for coordinated responses to changes in the body and maintains homeostasis.
Nematodes have a simple circulatory system that does not have a heart like vertebrates. Instead, it consists of a fluid-filled body cavity called pseudocoelom that helps transport nutrients and waste throughout their body. This system relies on the movement and contraction of muscles to circulate fluids.