Question

part a
scientists are exploring an area of modern science called nanotechnology that involves
view available hint(s)
understanding of movement of materials across a membrane
study of energy - deriving metabolic pathways
manipulation of materials at the molecular level
measurement of atp activity in a test tube

Explanation:

Nanotechnology focuses on working with materials at the nanoscale (molecular - atomic level). It involves manipulating materials at the molecular level. Understanding movement of materials across a membrane is more related to cell biology, study of energy - deriving metabolic pathways is biochemistry related, and measurement of ATP activity in a test tube is also a biochemistry experiment.

Answer:

C. manipulation of materials at the molecular level