14. What is lymphocyte ?
15. What is vaccination ?
Answers
Answer:
1. A lymphocyte is a type of white blood cell in the vertebrate immune system. Lymphocytes include natural killer cells, T cells, and B cells. They are the main type of cell found in lymph, which prompted the name "lymphocyte". Lymphocyte makes up between 18% and 42% of circulating leukocytes.
2.A vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins
Answer:
14)A limphocyte is a type of white blood cell in vertebrate immune system.
15) The act of introducing a vaccine into the body to produce immunity to a specific desease is called vaccination.
Explanation:
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