The street drug Ecstasy can lead to repetitive behavior such as drinking up to 20L of water over a two hour time period. This can lead to brain edema and death. Explain what is happening at the level of the brain cells and include the role of osmosis in this process

Abiology teacher asks students to give examples of genetic variations that support the idea that changes in a population’s environment affect genetic variation. which is the least supportive example? a.changes in genetics in human populationsb.antibiotic resistance in bacteria populationsc.pesticide resistance in garden insectsd.changes in the color of the peppered moth population in england