The diagram illustrates a model used to show mass flow. In a plant, what are the structures W, X, Y and Z, and in which direction does solution move along W?
Biology 9700 · AS & A Level · Movement into and out of cells
Biology 9700 · AS & A Level · Movement into and out of cells
The diagram illustrates a model used to show mass flow. In a plant, what are the structures W, X, Y and Z, and in which direction does solution move along W?