The answer to your question is the letter c
Answer:
cells, tissues, organs, and systems
Dude i think it the calven cycle
<span>Evidence that supports this includes the lack of true tissue in sponges and the close similarity between choanocytes and choanoflagellates.</span>
This could lead to an altering of the proteins tertiary structure which could make the protein non functioning (if cytosine didn’t attach to it) or give it a different function.
