Answer:
Temperature
Explanation:
Temperature is created by how fast particles move, so if they move faster, the environment would be warmer, etc.
Temperature is the kinetic energy of the particles in all technicalities.
This mechanism allows killer T-cells to hunt down and destroy cells that are infected with germs or that have become cancerous.
The other main type of T-cells are called helper T-cells.
Helper T-cells orchestrate an immune response and play important roles in all arms of immunity.
