Well for internal <span>they have proteins that respond to events inside the cell which are called internal regulators! They allow the cell cycle to move on only when certain processes have happened inside the cell internally. The opposite for external and it means p</span><span>roteins that respond to events outside the cell are called </span>external regulators<span>.
Hope this helps</span>
Answer:
The cell part that allows only certain substances to diffuse into and out of the cell is called the semi permeable membrane.
It is the mutarotation tests. Mutarotation is the adjustment in the optical turn in light of the adjustment in the balance between two anomers when the relating stereocenters interconvert. Cyclic sugars demonstrate mutarotation as α and β anomeric frames interconvert.
Mutarotation was found by French scientist Dubrunfaut in 1846 when he saw that the particular pivot of watery sugar arrangement changes with time
Glycine is an amino acid coded by GGA, GGU, GGC, GGG codons. Histidine is an amino acid coded by CAC, or CAU codons. It should be known that the mRNA chain that will be encoded must always have a START codon at the beginning and a STOP codon at the end.
Answer:
I know that for 6 is A) for 7) I'm between A) and C) for 8 it's B) 9 I don't understand, but the control group is whatever is kept the same and you're not testing on it and the rest I don't know