Chlorine has seven electrons in its valence shell. it accepts an electron to complete its octet and becomes a chlorine ion ( what is the nature of this chlorine ion?

cation
anion
metal ion

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