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Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
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Answer:
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Step-by-step explanation:
The heart is at the centre of the circulatory system, pumping blood to deliver oxygen and nutrients to all areas of the body, and removing waste products.
The heart works automatically, without us having to consciously control it.
The heart is a unique type of muscle, perfect for its role: it never tires and never needs to rest.
What does the circulatory system do?
The heart is at the centre of the circulatory system. This system is vital: it delivers oxygen and nutrients carried in the blood to cells of the body to 'power' them and it removes waste products from the blood.
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