Genalex medical, a leading manufacturer of medical laboratory equipment, is designing a new automated system that can detect normal levels of dissolved somatotropin ( to ), using a blood sample that is as small as . calculate the minimum mass in nanograms of somatotropin that the new system must be able to detect. be sure your answer has the correct number of significant digits.

A)-in the process of engineering design, explain the contribution of material selection. b)- explain the procedure of synthesis as is employed in engineering design. c)- is there any relationship between ergonomics and engineering design? explain. d)- safety consideration in engineering design includes human, product and the enviroment . explain how safety will be incorporated into the design?