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a hormone that causes the secretion of gastric juices into the stomach.
the broad band of tissue in plant organs under the epidermis, including the parenchyma cells and...
the splitting of water molecules into oxygen atoms and energy-rich hydrogen atoms to be used in...
skeletal muscle found all over the body, attached to the skeleton.
the parts and processes of the body that recognise and fight pathogens, such as viruses and...