Sentences with phrase «random environmental fluctuations»
However, it is hard to understand why the specific religious concept which they regard as outdated superstition, should be replaced by another superstition, popular in 19 century, that a directed evolution of species can result from random genetic mutations and random environmental fluctuations.
http://www.repealcreationism.com/ Not exact matches
Researchers say the changes may be due to random biochemical fluctuations known as stochasticity, or «noise» — variability occurring over time and influenced by environmental factors.