If the exchange of one phone in a word for another gives a new word with a different meaning, then the two phones belong to different phonemes. The difference in meaning between the English words kill and kiss is a result of the exchange of the phoneme /l/ for the phoneme /s/ . Two words that differ in meaning through a contrast of a single phoneme form a minimal pair. Within linguistics there are differing views as to exactly what phonemes are and how a given language should be analyzed in phonemic (or phonematic) terms.
Also known as epigenetic clock, DNA clock, Horvath's clock or DNA methylation age, this biological aging clock is an age predictor that can be used to measure the age of most human tissues, cell types, or organs.orvath hypothesized that DNA methylation age measures the cumulative effect of an epigenetic maintenance system but details are unknown. The fact that DNA methylation age of blood predicts all-cause mortality in later life suggests that it relates to a process that causes aging.
Â· just now. Report Abuse. Biological magnification, or biomagnification, refers to the accumulation of toxins in the higher trophic levels of a food web. The toxins enter the food web at lower trophic levels accumulating in greater concentrations as the pollutant moves up the food web.or example, say someone dumped DDT into the sea. The plankton would be affected, and would consume, say, 5 ppm of it. Fish eat a lot of plankton, and the amount of DDT in the fish would be about 10 ppm. A bird eating the fish would, therefore, carry a lot more DDT-maybe 25 ppm.