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.
Answer:
3 domains are archaea, bacteria and eukaryotes
5 kingdoms are animalia, plantae, fungi, protis,monera
then the classsifications are
kingdoms
phylum
class
order
family
genus
spicies
Explanation:
