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:
70% of people in the UK have sensory loss...I'm guessing...
Answer:
Tendency to have unprotected sex
Lack of sufficient knowledge about HIV transmission
Indulgence in irresponsible sex behaviors, such as sex working
Prevalence of young transgender individuals.
Increased drug usage
Explanation:
Blood is pumped through blood vessels all over our bodies because it carries the nutrients, mineral, and oxygen that every cell in our bodies need. It also carries out the metabolic waste away from its cell of origin.
Blood vessel is a tube-like structure in our body like vein, artery, and capillary. It carries blood through the tissues and organs within the body.
