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).
Sunny because it's more likely for 2 places to be sunny rather than rainy
Should be prophase because chromatin coils up, becoming shorter and thicker, thick enough to become visible when stained.
Answer:
gas moves more freely because it has loosely arranged molecules
Explanation:
