Answer:
my guess is C
Explanation:
All you have to do is eliminate the ones that don't make sense and c is the only one left
Answer: It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.
Explanation:
Go over materials that where gaven to you and maybe ask your teachers about the subject on the test but just come prepared and be ready for all that you learn about
A. Indique la relación entre la ocurrencia de cancer y la edad.
The correct answer is that "the T cell enters a state of anergy".
The activation of T cells requires two signals: (1) antigen specific signal presented by an antigen presenting cell (either a macrophage or a dendritic cell) that activates t cell receptors and (2) co-stimulatory signals that is not antigen specific but rather found in the plasma membrane of the antigen presenting cell (i.e. CD28). In the absence of a co-stimulatory signal, the t cell will enter a state of anergy or the inability to produce an immune response toward an offending antigen.
