Given the reaction at equilibrium:
N2(g) + O2(g) ↔2NO(g)
as the concentration of N2(g) increases, the concentration of O2(g) will:
a) decrease
b) increase
c) remain the same

Individuals within populations exhibit some diversity. as a result of possessing slightly different traits, some individuals are better able to survive and reproduce than others. if these individuals changes in the characteristics of the population may occur over time. the cumulative change in these characteristics is known as