Energy from sunlight can excite electrons, kicking them out of their orbitals and creating free radicals. free radicals are highly reactive atoms or molecules that have unpaired electrons. they degrade and destroy other compounds in their vicinity. carotenoids, one of the pigments present in most chloroplasts, can stabilize these free radicals. this suggests that

Since carotenoids stabilize dangerous free radicals, we can assume that their function is to protect the cell from the free radicals.

the answer is c

Explanation:

What is a free radical? if u was trying to find this

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:

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.