Evolution can be defined as the process of the change occurring in a population over a period of time through genetic variation. This genetic variation and the process of natural selection help a species to evolve by selecting the traits that helps it to better adapt to the environment. These genetic variations are inherited over time as the species continue to evolve.
Hence, the correct answer is 'change in population through genetic variation over time'.
Enzymes can be denatured in several ways:
1. Lower the temperature: the bonds holding the amino acids together tighten and constrict
2. Increase the temperature: the bonds tighten and constrict
3. Increasing or decreasing the PH levels results in bonds being altered therefore denaturing the protein
N2(g) + 3H2(g) <--> 2NH3(g)
Bear in mind that this is a reversible reaction.
Genetically modified organisms. (GMO)