Answer to Question 1
Answer: The key to the body's successful immune system is the ability to distinguish self (or proteins that belong to its body) from non-self (proteins that belong to any other living thing).
Answer to Question 2
Answer: Cytotoxic T cells directly kill virus-infected cells and tumor cells. Helper T cells secrete proteins that promote inflammation by calling for the microphages to the site, stimulating B cells, and activating the cytotoxic T cells. Regulatory T cells help lower the immune response once the infection is under control. Memory T cells remember an antigen and therefore can produce new fighting cells rapidly.
The poverty of the Least Industrialized Nations carries over to their educational system. These ...
(a) Blue arrows (right side): External components of the innate immune system: human body with skin, ...
How to solve a linear system by the substitution method
Incorrect body alignment with back bent and head forward.
Main body cavities that hold human organs
Immune-to-brain signaling occurs in response to infection, injury, and inflammation that occur in pe