<span>Genetic drift is also known as allelic drift or the Sewall Wright effect. It is a change in allele frequencies caused by random events. Sewall Wright is a biologist who studied it whish is why it sometimes bears his name. It shows how genes can be changed.</span>
Genetic drift is a change in allele frequencies caused by random events.Therefore in this case the correct answer is the change in allele frequencies caused by random events. Genetic drift is one of the basic mechanism of evolution along with natural selection, mutation and migration. In each generation, several individuals may randomly leave behind a few more descendants than other individuals. Genetic drift occurs when the occurrence of variant forms of a gene (allele) increases or decreases by chance over time.
The answer is water. It is mainly absorbed in the ileum and re absorbed in the colon. But note that not all water you take in is absorbed, as the faeces is wet.
Two different kinds of appendages may be found on eukaryotic cells that enable them to move. Flagella are long slender locomotor appendages that are usually single and few in number, whereas cillia are appendages which are numerous and short.
