This detailed rubric is not only designed to help connvey evaluation criteria to students and to help make feedback across sections of a large course consistent, but it's also clearly designed to help students learn the genre of an experimental research report in biology.
Writing is a process and even very experienced writers spend a lot of time rewriting. Your TAs will give you feedback and suggestions on your papers to help you in this process. Note, however, that it is not their responsibility to point out every flaw or to revise your papers for you. Revising is your responsi