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The diagram shows the structure of a nephron and part of its associated blood supply.
(2018)
Draw a pyramid of numbers to represent the information in the food chain below
Blood acts as a transport medium in the human body. Name two substances, other than food molecules and water, that are transported in the blood.
Answer the following questions from your knowledge of the human nervous system.
Suggest an advantage to the cell of using ATP as an energy source, instead of breaking down a sugar molecule every time energy is needed.
