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How does our body respond when adrenaline is secreted into the blood?
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Why is the use of iodised salt advisable?
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How does chemical coordination take place in animals?
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Design an experiment to demonstrate hydrotropism.
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Give an example of a plant hormone that promotes growth.
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How do we detect the smell of an agarbatti (incense stick)?
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Which part of the brain maintains posture and equilibrium of the body?
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What happens at the synapse between two neurons?
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What is the difference between reflex action and walking?
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Compare the functioning of alveoli in the lungs and nephrons in the kidneys
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What are the differences between the transport of materials in xylem and phloem?
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Describe double circulation in human beings. Why is it necessary?
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What would be the consequences of a deficiency of haemoglobin in our bodies?
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How are the alveoli designed to maximise the exchange of gases?
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