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Which type of bacteria is harmless and helps the body break down food and protect against infection?

  1. Diplocicci

  2. Nonpathogenic

  3. Pathogenic

  4. Streptococci

The correct answer is: Nonpathogenic

The correct answer is nonpathogenic bacteria. This type of bacteria is essential for maintaining a healthy balance within the body's microbiome. Nonpathogenic bacteria play a vital role in digestion by helping to break down food, which aids in nutrient absorption. Additionally, they contribute to overall health by protecting against pathogenic bacteria that can cause infections. Unlike pathogenic bacteria, which are harmful and can lead to disease, nonpathogenic strains are beneficial and support various bodily functions. Their presence helps to establish a healthy flora, particularly in the gut, and can enhance the immune system's ability to fend off harmful microorganisms. This relationship illustrates the importance of nonpathogenic bacteria in promoting health and preventing infection. Diplococci and streptococci are both forms of pathogenic bacteria that can lead to infections, while the term pathogenic specifically refers to any bacteria that can cause disease. Understanding the roles that different types of bacteria play in the human body is crucial for effective knowledge in the field of nail technology and overall health practices.