Cardiac muscle tissue autonomically work in unison to regulate the heart contractions. The pericardium holds the heart in the chest cavity and can stretch and move with the heart. Epithelial tissue also plays a role to hold the heart in place as well as cartilage?
The correct answer is C) There is a larger variety of MHC proteins that can be expressed on the cell surfaces of their immune cells, providing a wider opportunity to recognize and attack pathogens.
