A historian is looking to study the political causes for a particular city’s rapid development. Which two types of historical records can the historian research for this task?

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13

Is this mrna or rna need need the answer in a hurry

Which of these definitions have been paired with the correct type of cell?