I think the answer is oxygen, but not 100% sure
nucleolus
they are made up of subunits and these subunits are made within the nucleus by the nucleolus. Then they are assembled in the matrix of the nucleus.
The way that you could use molecular biology to determine whether these birds have evolved from a shared common ancestor is to take a look at their proteins, RNA, and DNA. Because the more similar these things are in the two types of birds, the more possible it is that they are somewhat connected via a common ancestor.
<span>Enzymes, special kinds of proteins, move up the DNA, breaking the rungs</span>
is this suppose to be a true or false question?
