D. Pathogen. :) I hope it right :)
Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance (sampling error).
Genetic drift occurs in all populations of non-infinite size, but its effects are strongest in small populations.
Genetic drift can have major effects when a population is sharply reduced in size by a natural disaster (bottleneck effect) or when a small group splits off from the main population to found a colony (founder effect).
Answer:
The correct answer is - Sudden infant death syndrome (SIDS).
Explanation:
Sudden infant death syndrome or SIDS is an unexplained condition that causes death to a child of under one year of age in the sleep. It occurs during the sleep of an individual child.
The cause of the SIDS is the still remain unexplained however some scientists and researcher suggested that babies sleeping face down on the soft surfaces is highly correlated to the infant death syndrome.
Thus, the correct answer is - Sudden infant death syndrome (SIDS).
By speaking to people about it and asking for help in school.
