Unicellular organism ...................................................................................................
An insect bite on the face produces a break in the skin which introduces the normal skin flora (usually <em>Staphylococcus </em>and <em>Streptococcus</em>) to the sterile subcutaneous tissue causing inflammation. The inflammation of the subcutaneous tissue is called cellulitis. Since the infection is in the face, then it can travel from the infected site to the meninges through the cavernous sinuses and cause bacterial meningitis.
Polyploidy is the term that describes the chromosomal abnormality of having extra chromosomes.
The two-layered sac surrounding the heart is the pericardium.
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