The correct answer is empirical evidence.
Empirical evidence is the part of scientific method and it is the information that comes from the research or experiment in the form of measurable data. Before any pieces of empirical data are collected, scientists need to design their research methods (forming a hypothesis).
Answer:
The correct answer is - natural selection.
Explanation:
Natural selection is a process of adapting according to the environmental change in order to survive and reproduce and increase their number. It is represented by Darwin for the first time. Natural selection leads to evolution.
In this case, White moths adapt according to the environment by increasing the population of black moths in order to blend with the surrounding and as the result, black moths are more likely to produce and survive and passed this trait to the next generation.
The reason why taq polymerase is used is because it is thermostable, meaning that it can remain intact and reactive after being exposed to the cycles of high temperatures that are used in PCR (an upwards of 94 degrees Celsius). If human DNA polymerase were used instead, it would immediately unfold and become inactive after the first round of high temperatures, effectively ceasing the PCR.
I believe it is called evolution and you can see this with a genetics tree
The loan from d to e represents evaporation