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The respiratory system and the circulatory (cardiovascular) system.
The tiny sacs within the lungs which allow oxygen and carbon dioxide to move between the lungs and the bloodstream is called alveoli. It is needed by the body to supply oxygen.
It protects the body from viruses and bacteria.
the job of the brain is to store information in the brain and to send your nervous system massages to different body systems.
I would say the circulatory system considering that the respiratory systems only purpose is to obtain oxygen from the air and put it into your blood. The circulatroy system and the respiratory sysetm work hand in had. The alveoli absorb the oxygen but the blood does the actual job of getting the oxygen around the body.
A person would suffocate.
The pancreas is part of the endocrine and digestive systems, secreting a number of enzymes.
To protect the body against foreign particals, or just protecting your body from getting sick, or helping it get better when it is sick, think of it as police
Each organ system is specialized with doing only one job.
i dont know im asking you These cells form a tissue to do specific job in the body.
get rid of contaminates in the body and also to pass through any extra water, vitamins, sugars, or minerals.
The alveoli, the small sacs of air at the ends of the terminal bronchioles, are the sites of the exchange between oxygen and carbon dioxide.