The answer that best fits the blank provided above is C3a and C5a. Mast cells release this so called histamines once they are exposed to C3a and C5a which are fragments of complement proteins. These are also called as <span>Anaphylatoxins along with C4a. Hope this helps.</span>
Answer:
A
Explanation:
Due to the hot weather the plants moisture start to decrease until they wilt.
Tertiary is a folded and working protein that is working alone