What’s the answer ? I will very appreciate if someone helps me

Afarmer has applied a pesticide to control a pest population that is affecting her crops. the pest population has reacted as shown below. which best describes the process that the pest population has experienced due to this environmental change? a genetic diversity b natural selection c natural resistance d genetic resistance

Which of these organisms have the greatest amount of cell specialized

What would be the most likely result if the ph of the stomach were increased to 5