EXTERNAL RESPIRATION: This is the exchange of gases between the living things and the surrounding.
INTERNAL RESPIRATION: This is the utilization of oxygen to release energy in stored food giving off carbon (IV) oxide and water as waste products.
EXTERNAL RESPIRATION: This is the exchange of gases between the living things and the surrounding.
INTERNAL RESPIRATION: This is the utilization of oxygen to release energy in stored food giving off carbon (IV) oxide and water as waste products.
Copyright warnings! Do not copy.