Answer:
CD4 on the surface of helper T-cells.
Explanation:
MHC class II ( major histocompatibility complex) molecules are processed from the exogenous source. The presentation of antigen on cells are important for the adaptive immune response.
MHC class II interact with CD 4 present on the surface of T helper cells. This interaction is important for the generation of an immune response. Helper T cells can release cytokines and can perform phagocytosis.
Thus, the correct answer is option (C).
The answer is FALSE.
Selective legalization is an addiction that will legalized rugs of abuse which cause addiction.
Drug abuse consumes substance which is harmful either to them or to others.
Drug abuse may lead to penalties of criminal. Some of this drug abuse are cocaine, methaqualone, alcohol, and cannabis.
Answer:
Movement of free water molecules from an area of low concentration to an area of higher concentration
Explanation:
By lowering the activation energy, it helps the reaction go faster.
Sediment; There is a source of heat that was not included in the question to create all the other choices.
