Explain how selective and differential transcription is critical for 1) unicellular organisms facing changing environmental conditions and 2) making multicellular organisms.

[content deleted] - user123802726recklesschicken

d we did this already

the sun's light combined with the visible wavelenghts form what is called ultraviolet radiation, which are the long waves at the end of a visible light sprectrum.

hope it ,

bioteacher101