In higher latitudes where lakes freeze over in winter, how do cool fall temperatures help fish make it through the winter? The cooling water slows fish metabolisms down and allows them to go into hibernation in winter.
Water from the bottom of the lake raises and provides oxygen to the cooler waters on the surface.
Cool water at the surface traps nutrients deep in the lake to provide food during the winter.
The water in contact with the air sinks and mixes with the less oxygenated water in the deeper levels.

chromosomes carry the genetic information for organisms. also, chromatin is the thread like dna which is located in the nucleus of an organism.

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) the inside picture would look at a very high temperature in a very low ph