Microorganisms that infect the middle ear cavity most frequently come from the Pharynx.
<h3>How do Microorganisms migrate from Pharynx to the middle ear cavity?</h3>
The Eustachian tube, which joins the middle ear to the nasopharynx, balances air pressure in the middle and outer ears to prevent ear drum perforation. It is known that the nasopharynx and Eustachian tube are the routes through which these bacteria get to the middle ear.<em> Streptococci, Haemophilus pneumoniae, Moraxella catarrhalis, </em>and <em>Mycobacterium </em>are all known to reside in the middle ear.
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Answer:
Scourge
Explanation:
Scourge is something or someone that causes suffering. It can be in the physical sense like pain and torture, or it can be in the form of emotional and psychological pain. Scourge is not limited to physical beings or things, it can also be events or situations like droughts, diseases, earthquakes.
B. protons are attracted to neutrons
Answer:
The answer is B
Explanation:
The thymus secretes thymosin, which is necessary for T cell production. Therefore, if the thymus were damaged, there would be a lower number of T cells in the blood
For measuring the temperature of a classroom, the best instrument that one can use is the THERMOMETER. The correct option is D.
Thermometer is the instrument that is specifically designed for the measurement of temperature and there are different types of thermometers for measuring different types of temperature.
Note that, barometer is used for measuring atmospheric pressure, sphygmomanometer is used for measuring blood pressure and atmosphotometer does not exist.
