Can someone explain the metic system to me?

9. wind power creates pollution. water air soil noise

Which of the following words best matches this definition: the process in which the best adapted organisms survive and pass on their traits, while those that are not well adapted do not survive to pass on their traits. question 3 options: acquired selection natural selection artificial selection organic selection

This is a scaffolding of protein fibers that us sell keep it shape in a cell division and cell movement