D an animal or plant getting a new "ability" is an example of evolution like this plant can climb now
Action potential is a mechanism of transfer of ions across the plasma membrane down their elctrochemical gradient. Action potential is regenerated by the influx of ions such as sodium in case of voltage gated sodium channels. The voltage gated channels can be either open or closed depending on the action potential. Depolarization of membrane leads to the opening of these channels that allow the sodium ions to enter the cell down their electrochemical gradient. The threshold of action potential is reached when the entry of sodium ions out reach the exit of potassium ions from the cell. This leads to the generation of action potential.
Answer and Explanation:
The main environmental factors that can modify the life cycle not only of insects, but of all living beings are temperature, water availability and human activity, as variations in these factors can both prevent the life cycle from being completed, how you can accelerate and delay the phases of this cycle in different ways.