Answer:
It ensures greater accuracy in your observations.
The repressor binds to the operator, blocking RNA from having acess to the promoter
Since cells have specific functions and capabilities, unicellular organisms have less capabilities and more or less have one job. Functions are reduced with unicellular. Humans, for example who are multicellular, have functions for cell regeneration, clotting, nerves, etc and therefore have a longer list of functions that unicellular organisms like bacteria
The<u> troposphere</u> is the lowest layer of our atmosphere.
The next layer up is called the <u>stratosphere. </u>
Above the stratosphere is the <u>mesosphere</u>.
The layer of very rare air above the mesosphere is called the <u>thermosphere.</u>
Although some experts consider the thermosphere to be the uppermost layer of our atmosphere, others consider the <u>exosphere </u>to be the actual "final frontier" of Earth's gaseous envelope.
The <u>ionosphere</u> is not a distinct layer like the others mentioned above.