Substances that cause harm by affecting the immune system include

The answer is allergens. This is known to be harmless substance that can cause the immune response to be triggered that likely cause an individual to have an allergic reaction. This could be found in various of things or food depending on how the individual’s immune system will react to it.

the transfer of energy between two molecules spaced just nanometers apart plays a key role in many technologies, including photovoltaics, quantum information systems, lighting, and sensors, as well as in biophysics to measure nanometer distances and in photosynthesis. but an open question in this area is what effect, if any, the surrounding photonic environment has on this nanoscale energy transfer. by designing and performing a carefully controlled experiment to answer this question, scientists have settled the debate and found clues to improving the efficiency of many of the technologies that rely on this process.

explanation:

answer; ///i believe the correct answer is (aids) acquired immune deficiency syndrome;