Insulin is produced by a type of cell called a Beta-Cell which is located in the pancreas. When over production or underproduction or no production is noted, then it is an indication that some sort of metabolic illness involving beta cells is present. These are usually diseases such Diabetes Mellitus both I and II, Prediabetes, Gestational Diabetes (mostly diabetes)
Answer: Heyo Kenji Here, The table tennis racket is like a wooden paddle and has rubber sides to increase bounce.
Explanation: Hope this helps!
I would give you the answer(s), if you would be a little more specific.