The correct answer of the given question above is option A. The line of defense that his immune system is exhibiting in this situation is the first line of defense. The first line of defense includes the physical or external line of defense of the body that are responsible for inhibiting of the entry of foreign microorganisms. Such include the skin, tears, cilia, mucus, urine flow and even stomach acid.
It allows scientists to explore new explanations for observations.
Kinetic energy is the energy that an object has because of its motion.
You forgot to show us a picture bro
