Research indicates that stress can produce direct physiological effects such as elevated blood pressure, increased hormonal activity, and decrease in immune system functioning. Or, in other words, all except psychological disorders.
In geology, a key bed (syn marker bed) is a relatively thin layer of sedimentary
rock that is readily recognized on the basis of either its distinct
physical characteristics or fossil content and can be mapped over a very
large geographic area.[1]
As a result, a key bed is useful for correlating sequences of
sedimentary rocks over a large area. Typically, key beds were created as
the result of either instantaneous events or (geologically speaking)
very short episodes of the widespread deposition of a specific types of sediment. As the result, key beds often can be used for both mapping and correlating sedimentary rocks and dating them. Volcanic ash beds ( and bentonite beds) and impact spherule beds, and specific megaturbidites
are types of key beds created by instantaneous events. The widespread
accumulation of distinctive sediments over a geologically short period
of time have created key beds in the form of peat beds, coal beds, shell beds, marine bands, black in cyclothems, and oil shales. A well-known example of a key bed is the global layer of iridium-rich impact ejecta that marks the Cretaceous–Paleogene boundary (K–T boundary). Please let me know if it works.
Answer:
Isomerization
Explanation:
In nature, when a carbohydrate has a formula, this formula can be share with different compounds (isomers) because they have the same number of atoms of the same elements, but the arrangement is different.
For example, the formula C6H12O6, is the same for glucose and for fructose, but in living things, when they process these two molecules, they do it with two different metabolic paths. With the specific use of enzymes, the body can separate one from another. In some cases, the mistakes can occur inside a cell process, leading a different metabolic path.
Hope this info is useful.
Chords that contain tones a half-step or whole-step apart are called Tone Clusters. It is a chord made up of tones only a half step or whole step apart. It can be produced on a piano by striking a group of adjacent keys with the fist or forearm.
I think you might be thinking of the different folding patterns of proteins. It begins with primary structure, then secondary, then tertiary, and finally quaternary.