The student who caught the cold caused by this specific Rhinovirus was exposed to the exact same Rhinovirus 18 months later. Memory B cells of the immune system will protect her from getting the same cold again.
In immunology, a memory B cell (MBC) is a type of B lymphocyte that forms part of the adaptive immune system. These cells develop within germinal centres of the secondary lymphoid organs.
Memory B cells circulate in the blood stream in a quiescent state, sometimes for decades. Their function is to memorize the characteristics of the antigen that activated their parent B cell during initial infection such that if the memory B cell later encounters the same antigen, it triggers an accelerated and robust secondary immune response.
Memory B cells have B cell receptors (BCRs) on their cell membrane, identical to the one on their parent cell, that allow them to recognize antigen and mount a specific antibody response.
Learn more about memory B cell here : brainly.com/question/23423029
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The water molecules move by osmosis into the cell from high water concentration to low water concentration.
Answer:
Neuron
Explanation:
This is the applicable unit calculation for actions in which are taken within the brain and spine. Neurons allow the transfer of information, allowing us to move our body in a desired form
Answer: A. Mesopelagic zone
Explanation: This zone is referred to as the "middle zone" within oceanic waters. Not yet the deep zone, however past the top layer aka upper ocean.
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