Colorado Esthetician Written Practice Exam

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Which type of bacteria forms clusters resembling grapes?

Bacilli
Spirilla
Streptococci
Staphylococci

The correct answer is: Staphylococci

Staphylococci is the correct answer because this type of bacteria forms clusters resembling grapes. Staphylococci are round-shaped bacteria that tend to group together in clusters, giving them a grape-like appearance. Bacilli are rod-shaped bacteria, spirilla are spiral-shaped bacteria, and streptococci are bacteria that form chains. These descriptions do not match the characteristic cluster formation of staphylococci.