Which organisms are nonpathogenic and live on dead matter, not producing disease?

Which organisms are nonpathogenic and live on dead matter, not producing disease?

• A. Saprophytes
• B. Staphylococci
• C. Streptococci
• D. Bacteria

Answer: (A)

Organisms that live on dead matter and don’t cause disease are saprophytes. They feed on decaying organic material, helping to break it down and recycle nutrients, and they’re generally not pathogenic to living tissue. In contrast, terms referring to specific bacteria like those that can cause infections, or the broad category of bacteria itself, don’t specifically describe this dead-matter-decomposing, nonpathogenic lifestyle. Saprophytes capture the idea of harmless decomposers that thrive on dead material, making them the correct choice.

Organisms that live on dead matter and don’t cause disease are saprophytes. They feed on decaying organic material, helping to break it down and recycle nutrients, and they’re generally not pathogenic to living tissue. In contrast, terms referring to specific bacteria like those that can cause infections, or the broad category of bacteria itself, don’t specifically describe this dead-matter-decomposing, nonpathogenic lifestyle. Saprophytes capture the idea of harmless decomposers that thrive on dead material, making them the correct choice.