In the world of tiny cellular machines, what determines function

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

The cluster of developing cells from conception until birth is called an

All ova contain sex chromosomes corresponding to: x y xx xy