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The human digestive system - The digestive system - BBC Bitesize
Web1 day ago · The mystery of the human genome's dark matter. Twenty years ago, an enormous scientific effort revealed that the human genome contains 20,000 protein-coding genes, but they account for just 2% of ... WebThe human heart works like a pump sending blood around your body to keep you alive. It’s a muscle, about the size of your fist, in the middle of your chest tilted slightly to the left. What is the function of the human heart? Each day, your heart beats around 100,000 times. c store brakebush best selling
What is the circulatory system? - BBC Bitesize
WebThe heart - The circulatory system in humans – WJEC - GCSE Biology (Single Science) Revision - WJEC - BBC Bitesize GCSE WJEC The circulatory system in humans The proper functioning of the... WebBlood is pumped from the heart in the arteries. It is returned to the heart in the veins. The capillaries connect the two types of blood vessel and molecules are exchanged between the blood and ... WebThe major nutrients required for a healthy diet are carbohydrates, proteins and lipids. The digestive system breaks down large molecules of food, which are then absorbed into the bloodstream. early intermediate classical piano pieces