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Investigating factors affecting the breathing rate of a locust
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Using a spirometer to investigate human lung function
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Control of breathing rate
Investigate how carbon dioxide and oxygen in the air affect the breathing rate of a locust, and compare this with information collected from using a spirometer to investigate human breathing. Experiments
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Modelling the human ventilation system
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Investigating what makes fruit go brown
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Dissection of the ventilation system of a locust
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A window on the past: Measuring stomatal density
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Interpreting information about sweating and temperature
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How much energy is there in food?
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Observing the effects of exercise on the human body
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Homeostasis
of our control systems operate to maintain a constant internal environment – for example the response of heart rate and breathing rate to exercise results in maintenance of levels of oxygen, carbon dioxide and glucose in the blood, and several responses...
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Ventilation systems
oxygen-rich air (or water) into their bodies and removing carbon dioxide-rich air (or water). A closer look at insect breathing systems makes it easier to appreciate the functions of the more familiar human ventilation system. A detailed study of human...