Differentiate between a response to a stimulus and an adaptation?

When the body is subjected to a stimulus there is a certain responsive reaction, in most cases it is a self-protection action. However, if the same stimulus repeatedly occurs, the body will try to adapt such that additional responses are not required. Hence, in order that such individual will survive, a certain individual will react to stimulus adaptations and inherit the characteristics of a group of people that develops over time in a response to an environmental factor. Moreover, adaptation response is a state of being adapted, it is an act of adapting into various cases in the environment which were repeatedly occur.

Step number 4 is least likely to occur meiosis 1

Dna overload will occur