When considering the arrangement of rods and cones in the retina, there is a central location where only cones are found. As we move farther away from this point there are increasing amounts of rods and fewer cones so, as some point we are only able to see black and white. This central location of only cones is known as the

Fovea centralis

Explanation:

The fovea centralis is also a part of the structures found in the eyes.

The fovea centralis is characteristics as a small, central pit made up of closely packed cones and no rods in the eye.

It is found in the center of the macula lutea of the retina. It is the location that has the highest visual acuity and best color vision.

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:

b is the correct answer