Answer:
Cell, Tissue, Organ, Organ system, Organism
Protons is the answer I think u are needing
Answer:

Explanation:
N = Final mass of atom = 125 g
= Initial mass of atom = 16000 g
t = Time taken = 163.24 days
= Half life
We have the relation

The half life of the atom is
.
Answer:
all i can help you with is one of them is Canada. If im
wrong i am sorry.