Answer:
can be caused by interaction with MHC/peptide in the absence of costimulation
Explanation:
T cells represent a class of white blood cells (lymphocytes) that have a major role in the adaptive immunity of the organism against specific pathogens. Peripheral tolerance is a type of immunological tolerance aimed at ensuring B and T cells that escaped from the central tolerance mechanism do not produce autoimmune diseases. Some populations of lymph node cells can induce peripheral tolerance in T helper cells (Th cells, CD4+ cells) by the presentation of peptide-MHCII (major histocompatibility complex type II) complexes acquired from dendritic cells. These dendritic cells are antigen-presenting cells that play a key role in adaptive immunity, which are well-known to induce CD4 and CD8 T cell tolerance in response to antigens (peptides/proteins).
Answer: B, Desert.
Explanation:
Desert biomes are the driest of all biomes, meaning that it has the least amount of precipitation.
Answer:
precipitation
Explanation:
its a big boy word for rain ;)
Answer:
(D.) Release the shark into the ocean.
Explanation:
It would be best for the shark to go back in its natural environment to finish his life.
Answer:
up next week and the trees and shrubs the
Explanation:
because I want the points
