Explain how this example of pesticides resistance in ticks is an example of biological evolution

Best Format, Population Change

The development and spread of antibiotic-resistant bacteria, along with pesticide resistance in plants and insects and numerous investigations of population change, provide contemporary evidence that evolution due to natural selection and epigenetic changes are ever-continuing processes in the natural world. This is true for all organisms, humans as well.

In 1491, New Revelations of the Americas before Columbus, Charles Mann (2011) points out that unlike A.R. Holmberg’s view in Nomads of the Long Bow: The Sirionó of Eastern Bolivia (1969), the aboriginal Sirionó people “existed almost without change in a landscape unmarred by their presence.” Thus, it first appears that “indigenous peoples of the Americas floated changelessly through the millennia until 1492.” In truth, human populations constantly change, although not at the same rate and in the same direction, no matter what their cultures are like. In addition, the process of change in relation to population isolation mechanisms and subsequent speciation of organisms in general have been observed directly and indirectly in both nature and under artificial conditions.

not sure if this is what you'r looking for eubacteria and archaebacteria