New York Nail Technician License Practice Test

What is the role of non-pathogenic bacteria in nature?

1. Decomposition

2. Food production

3. Pathogen resistance

4. Antibiotic creation

The correct answer is: Decomposition

Non-pathogenic bacteria play a crucial role in the ecosystem primarily through decomposition. These microorganisms are responsible for breaking down organic matter, such as dead plants and animals, returning nutrients to the soil and promoting soil health. This process is vital for maintaining the balance of ecosystems, as it facilitates nutrient cycling and supports plant growth. While non-pathogenic bacteria can also contribute to food production and antibiotic creation, their most fundamental role in nature is the decomposition of organic material. Pathogen resistance is important, but it refers to the ability of living organisms to resist infections rather than a specific role of non-pathogenic bacteria. Therefore, the focus on their function in decomposition highlights their essential contribution to the environment and overall ecological balance.