Two types of white blood cells are lymphocytes and phagocytes which protect the body from foreign microbes.
Explanation:
The acquired immunity requires white blood cell which are phagocytes and lymphocytes that act on the microbes or antigen.
Phagocytes surround any microbes present in the blood and inundate them. these white cells are attracted to pathogens and attach to them.
Lymphocytes recognize proteins present on the surface of microbes or pathogens called antigens. They detect that these are not naturally found within your body and produce antibodies.
Thus, through the phagocytes and lymphocytes are the white blood cells protect the body from foreign microbes.
Prokaryotes play several roles in the nitrogen cycle. Nitrogen-fixing bacteria in the soil and within the root nodules of some plants convert nitrogen gas in the atmosphere to ammonia. Nitrifying bacteria convert ammonia to nitrites or nitrates. ... Denitrifying bacteria converts nitrates back to nitrogen gas.
