Once infected cells have sensed an invading pathogen, they secrete molecules called cytokines and chemokines. Cytokines such as interferons are molecules that signal neighbouring cells and induce an antiviral state in them. These cells are then primed to resist an infection with the invading virus.
Answer:
Antibodies are produced by __type B__ lymphocytes; cell-mediated immunity is provided by __type T__ lymphocytes.
Answer:
The answer would be 'b'
Explanation:
An ethical dilemma or ethical paradox is a decision-making problem between two possible moral imperatives, neither of which is unambiguously acceptable or preferable. The complexity arises out of the situational conflict in which obeying would result in transgressing another
