blood, blood vessels, cappilaries, and the heart
heart, arteries, capillaries, and veins
blood, blood vessels, heart, veins
I couldn't find four, but I found the heart, blood vessels, and the blood. :)
atmospherehydrospherebiospheregeosphereThat is the four major parts of earth systemBy,6th Grader Brownell Middle School (Gilroy California)
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No, pigs have a closed circulatory system. Open circulatory systems are used by invertebrates like grasshoppers and other lower-order animals; these systems involve having a beating heart but not a complete 'plumbing' system of arteries and veins - the blood just bathes the internal organs then eventually trickles back into the heart to be pumped around again.
Skull and neck
respiratory system,immune system,digestive and circulatory system.
The word heart is another four-letter word that is related to your circulatory system.
The heart is a four chambered pump that forces blood around the circulatory system, also known as the cardiovascular system. Which rather makes the heart a major (and very important) organ.
I couldn't find four, but I found the heart, blood vessels, and the blood. :)
The fish heart is made up of four parts in a closed-loop circulatory system. The four parts are the sinus venosus, the atrium, the ventricle, and the bulbus arteriosus.
The four main components of the circulatory system is the following; 1. Heart 2. Veins 3. Artery 4. Vessels
atmospherehydrospherebiospheregeosphereThat is the four major parts of earth systemBy,6th Grader Brownell Middle School (Gilroy California)
Marsupials have a closed and complete circulatory system. The heart has four chambers and the arterial blood does not mix with venous blood.
The digestive, circulatory, muscular and nervous system.
The left ventricle is one of the four chambers of the heart, so it is part of the circulatory system.
The four major parts are: the kernel, process manager, file manager and scheduler
Birds have a heart and blood vessels similar to most complex organisms. They have relatively large hearts and relatively rapid heartbeats for their size because flight requires a lot of energy to be used. Their hearts also have four (4) parts to them