the maximum amount of air the lungs can hold.
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Type: Glossary
the windpipe or tube that carries air. It is kept open by C-shaped rings of cartilage.
Type: Glossary
elongated cells in the xylem of vascular plants that transport water and mineral salts.
Type: Glossary
the process of moving organic material via the phloem sap.
Type: Glossary
the loss of water vapour from the aerial parts of a plant through stomata or lenticels.
Type: Glossary
the main force responsible for the upwards movement of water in the xylem.
Type: Glossary
valve between the right atrium and the right ventricle.
Type: Glossary
animals with three cellular body wall layers: the ectoderm, mesoderm and endoderm.