Question

For which of the following prostheses would biocompatibility not be a serious
issue?
A. A hearing aid
B. Contact lenses
C. An engineered arm connected to nerve endings so that it can
respond to brain signals
D. A heart valve

Answer 1

a hearing aid.

it doesn't get in contact with fluids (like contact lenses) and doesn't get implanted, so it got not much to do with the immune system

Answer 2

Answer:

hearing aid

Explanation:

i just took tha test