Give that the half-life of the radioisotope carbon -14 is 5730 years , how useful do you think this this isotope would be for dating bones that are over a million years old ?

I think it would be useful.  

i would say the prokaryotic cells the prokaryotic cells are less complex, are usually found only in unicellular organisms and have more limited capabilities than eukaryotic cells.

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.