All living organisms sense and respond to environmental cues. Explain.

(N/A) $1$. All living organisms,from the simplest prokaryotes to the most complex eukaryotes,can sense and respond to environmental factors.
$2$. These environmental cues include physical factors like light,water,and temperature,as well as biological factors like other organisms and chemical factors like pollutants.
$3$. Humans are the only organisms aware of themselves,i.e.,they have self-consciousness.
$4$. Thus,consciousness is a defining property of living organisms.