It should be b mental health I'm pretty sure
3 components of connective tissue<span>specialized cells, extracellular fibers, ground substance
matrix makes up most of the tissue</span>
A. muscle cramps, fatigue, and lightheadedness.
Answer:
There are 3 main types of T cells: cytotoxic, helper, and regulatory. Each of them has a different role in the immune response. Cytotoxic T cells (Tc cells) have a co-receptor called CD8 on their cell surface. CD8 partners with the T cell receptor and with MHC class I molecules, acting as a sort of bridge.
Explanation: