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a heart chamber that pumps blood from the heart to the body or lungs.
cellular respiration that takes place in the presence of free oxygen.
potentially lethal disease in humans and grazing animals such as cows and sheep. The disease is...
the sheet-like muscle found below the ribcage that plays a vital role in breathing.
the process whereby certain substances are removed from a liquid and others retained, due to...
animals that lack a cavity between the digestive tract and the outer body wall.