What is on the end of all charged trna molecules

Compare the electric repulsion of the protons in the uranium nucleus (element 92) with the repulsion of the protons in the nucleus of barium (element 56)

9. wind power creates pollution. water air soil noise

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.