The nucleus is the control center of the cell
The scientist who first organized the periodic elements according to its atomic weight was Alexander Emile Beguyer de Chancourtois. He was followed by John Newlands but they both had trouble arranging the properties because of some similarities that came out of the study.
It was Mendeleev who arranged the elements according to the atomic number that made the periodic table properly arranged he also knows that there are more elements that haven't been discovered.
Archea and Bacteria have prokaryotic cells, meaning their cells do not contain a membrane enclosed nucleus or other membrane enclosed organelles. The Eukarya ribosomal RNA (rRNA) sequence is unique and different from either the Archea or the Bacteria.
Sorry if this doesn't help :/
the complementary base would be AACGTGC
the reason why this would be the complementary strand is because, you switch out the letter for the one its paired with so for reference
Thymine=Adenine
Guanine=Cytosine
Cytosine=Guanine
Adenine=Thymine
I believe the answer is a) inside