A. absolute
a. radioactivity
b. unstable atom
B. Atoms
1. atom
a. nucleus.
b. electrons.
2.proton
a. neutrons
b. isotopes
3. stable isotopes
a. radioactive isotopes.
b . radioactive decay.
c. parent isotopes.
d. daughter isotopes.
Answer:
Ribosomes are produced by the nucleus. Specifically, the nucleolus.
Explanation:
