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Stem cells are pluripotent cells which means they have the capacity to differentiate into several different cell types. This is useful in multicellular organisms as they facilitate  growth and repair of cells which may need replenishing. 

Biology

Detailed explanation: describe the role of stem cells in multicellular organisms

Someone playing soccer on a hot day is inclined to produce a small amount of concentrated urine due to increased loss of water from sweating whilst active

Maths

Describe the connections and volume of urine products by a person who has been playing soccer in a hot day. Explain your answer

An increased surface area means the athletes would be able to perf use the blood with oxygen more richly leading to a greater supply of oxygen rates blood to effector muscles and thus an enhanced performance 

An athlete trains to run a marathon. The surface area of each of the athlete’s lungs has increased to 80 m2. Give one way in which this increase will help the athlete.

Sara Fabe

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Sara Fabe