what step of the scientific method is described in each event and in what order would a scientists completely these events

How do you transfer mrna into codons ? i'm so confused : (

Compare and contrast cladistics and phylogeny. what are their advantages and disadvantages? which is the most useful in understanding how an organism developed into its current form? which concept most strongly supports your opinion about the origin of any given organism?

Me with biology endocrine system crossword also image left i need with hw