A bone fragment found in Africa has 75 C-14 atoms and 75 C-12 daughter atoms. How many half-lives have passed and how old is the bone

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass

Aresident is five feet tall.what is the measurements in iches

How does the structure of dna hold the information needed to code for the many features of multicellular organisms?