The condition in which the body immune system is completely failed to resist any sort of pathogen is called AIDS.
Our immune system is consist of cells proteins and organs which are involve in our immune system. When any component is failed to perform it’s function then it leads to AIDS.
AIDS refers to the last stage of destruction of lymphocytes.
The causual agent for aids is HIV(human immuno deficiency virus).
Humans rank with a trophic level of 2.2 above us are Carnivores such as foxes that eat herbivors.