Are there answer choices to this question
Answer:
ok .......................
Two main classes of extracellular macromolecules make up the matrix: (1) polysaccharide chains of the class called glycosaminoglycans (GAGs), which are usually found covalently linked to protein in the form of proteoglycans, and (2) fibrous proteins, including collagen, elastin, fibronectin, and laminin
Answer:
c. many infected people do not know they are infected.
Explanation:
I'm pretty sure this is the right answer Sry if its not