Staphlococci, diplococci and streptococci are classified as __________ pathogens.

Staphylococci, diplococci, and streptococci are all grouped together under the classification of cocci, which refers to their spherical shape. In microbiology, the classification of bacteria is often based on their shape, and cocci are characterized as round or ovoid. Each type mentioned—staphylococci forming clusters, diplococci appearing in pairs, and streptococci arranged in chains—demonstrates the diversity within the cocci category.

Cocci are significant in nail tech theory because they can be pathogenic, meaning they are capable of causing disease. Understanding this classification helps nail technicians remain vigilant about sanitization practices and preventing infections, especially when dealing with clients.

The other options represent different bacterial shapes or classifications. Spirilla are spiral-shaped bacteria, non-pathogenic refers to organisms that do not cause disease, and bacilli are rod-shaped bacteria. Recognizing the structure and classification of bacteria is critical for effective prevention of nail infections and ensuring proper hygiene in nail care settings.