Answer;
The above statement is true
Explanation;
-Complement is a system of plasma proteins that can be activated directly by pathogens or indirectly by pathogen-bound antibody, leading to a cascade of reactions that occurs on the surface of pathogens and generates active components with various effector functions.
-C3b is the larger of two elements formed by the cleavage of complement component 3, and is considered an important part of the innate immune system. C3b is potent in opsonization: tagging pathogens, immune complexes (antigen-antibody), and apoptotic cells for phagocytosis.
1. D
2. B
Those are your answers hope this helps!!
Answer:
Answer is C. Tracking the price of oil when a war in the middle east interrupts the flow of crude oil.
Explanation:
Scientific method is a kind of carrying out research for identifying and subsequently solving a problem. it can also be explained as series of steps in using scientific investigations for answering issues about the nature.
