How are the circulatory and digestive systems the same?

Answer 1

they aren't the same. the digestive system is all about convering food into appropriate energy sources and other items used by the body, the circulatory system is where oxygen is carried around the body in the blood stream from the lungs to all the muscles and the brain.

digestive - food, eating

circulatory - breathing, oxygen, blood

Answer 2

all three systems are continuous and tubular. they are specialized to extract biologically useful matter from the substance that they convey and to unload waste. all of these exchange processes exploit the existence of transmembrane gradients. all three have a muscular component which provides the motive force for mass flow through the system.

Answer 3

All of them are the bridges between nutrients and the organism.
The respiratory system catch only oxygen from the air to deliver it to the circulatory system, which by its turn deliver the 02 to the cells of the organism.
The circulatory system deliver oxygen to the cells, and nutrients from the digestive system throughout the organism, being the ultimate target the cells also.
The difference is that the digestive and the respiratory system do not travel through the body. They are restricted to the lungs, and the digestive system, which is constituted by the stomach, bowels, liver, and others. Only the circulatory system is able to reach all cells in the organism. But they are all dependant of each other.

Answer 4

The blood in the cardiovascular system carries the nutrients obtained by the digestive system to all the cells in the body.