The property of life that Kevin's eyes engaged in to allow more light is known as a r<u>esponse </u><u>to </u><u>stimuli</u><u>. </u>
<h3>Responding to stimuli</h3>
Living organisms respond to events known generally as stimuli to better navigate the environment.
Different organisms respond in different ways but the goal is to survive better.
In Kevin's case, the stimuli was the dimness of the building and so his eyes responded to this stimuli by widening to allow Kevin to better navigate his environment.
No because it's your property, however there would be A LOT of p*ssed off people because of it. You'd probably be all over the news, 'cause you'd have to be really rich to buy it AND then people would harass you about it.