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).
Answer:
Wind, an indirect form of solar energy, moves the surface currents while the surface currents itself also rotate in circular patterns due to the earth's rotational force. They are both part of the Coriolis effect.
Explanation:
The largest energy component comes from the fats in bacon and fried eggs.
The correct answer is low precipitation.
The cause of limited water supplies is reduced precipitation or low precipitation.
Precipitation is termed as any product of condensation which is of atmospheric water vapour which falls under gravity.
Forms of precipitation can be sleet, snow, graupel, hail, drizzle, and rain.
Precipitation occurs when portion of atmosphere comes to being saturated with water vapor such that water condenses and then it precipitates.
It is the major component of water cycle and deposits fresh water to planet.
