The genetic code is considered universal because the same four nucleotide bases are used by all known organisms
B migration, that is the answer
Q1: The answer is seasonal changes.
Q3: The answer is sodium.
Q4: Not sure, sorry.
Q5: And then I think it is A for this one, but I am not sure.
They give us the energy we need to move and to speak and to live they do that for all the organisms on earth