As the plasma cells begin secreting antibody, the antibody titer begins to rise. Eventually , the primary response will make an immune memory of the antigen.
IgM is not the first class of antibody which appear on the surface of developing B cell. It is the major class which secreted into the blood in the blood int he early stages of primary antibody response, which expose to antigen. Primary antibodies occur during the first encounter with virus.
All adaptive immune responses develop in steps, which consisting antigen recognition, activation of specific lymphocytes to proliferate , with the memory cells being the long live survivor.
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Answer:
D
Explanation:
Pollutants tend to an increase in concentration in the fatty tissues of animals compared to the concentration of the same pollutant in the environment.
Also, tend to increase in the fatty tissues of organisms at each trophic level.
Hence, as a result of this, the highest concentration of the insecticide is accumulated by the organisms at the highest level of the food chain. So, the tertiary consumers accumulate the highest concentration of the insecticide.
Answer:
A decline in the size of the native fox population
Explanation:
Changing from a gas to a liquid is called <span>condensation.</span>
