Which animal adaptation happened before the others?

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

In what layer of the sun is energy transfers between atoms

Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins