Viruses are not considered to be living organisms because
According to the Hygiene Hypothesis, overly clean living (antimicrobial everything, extreme sanitation, etc.) can prevent our immune system from distinguishing between our 'friends' and 'foes'. This can result in
Which is correct about primary and secondary immune responses?
Antibodies are ___ proteins while antigens are ___ proteins.
Which of the following would be an example of a specific line of defense against an infectious agent?
Which of these immune cells give rise to plasma cells, which can then produce antibodies?
During winter break and during spring break, you came down with another horrible cold! In fact, you have probably had the common cold dozens of times in your life. If having a disease is one way to gain immunity, why have you not become immune?
What immune system is activated by a vaccine?
You found the third hint: A deadly frost that would freeze her at once