Answer: the small intestine
Explanation: the small intestine absorbs most of the nutrients in our food. and aid's with digestion
The part of your brain that controls your heart and lungs is the medulla.
Science must be used to figure out the correct weight, length, and what material it is made out of to be the most successful at its job. Technology must be used to make sure that the calculations are correct and to use a 3d printer or something like that to make it, that or robots/tools.
