Do you want the catholic answer or do you just want a general answer, because it could be an opinion.
The Incubator made it possible to maintain a controlled environment for cell cultures because most modern incubators act as a petri dish but in a more controlled state.
Founder effect or population bottleneck refer to events which bring about reduction in the genetic variability of a particular specie population. Such events typically drastically reduce the gene pool of the population and produce a smaller number of population with less genetic diversity. An example of a population bottleneck is a genocide event. Such event will destroy a large percentage of the affected population leaving only a smaller population with less genetic diversity. i hope these helps.
This process is known as a involuntary reflex.
The etheric body
The etheric body is the layer of the human energy field that is most closely associated with the body's blueprint of physical health and is found closest to the physical body.
The etheric body is the first layer of the human energy field that is found to be in immediate contact with the physical body. The ether body is the energy system for the physical body as it sustains it, joins it with higher bodies and functions as the matrix for physical metabolic activities.