Can anyone help me this Christmas? Any nice people out there?

Greenthe fossil record is the history of life recorded byhuman observationgod.climatologists.remains of the past.

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

The carrier molecules of the electron transport system are located in the