Alaska Barber Certification Practice Exam 2024 - Free Barber Certification Practice Questions and Study Guide

Ringworm is caused by a type of fungus called dermatophytes, which live on the skin's surface. These fungi thrive in warm and moist environments, and can be spread through contact with infected people, animals, or contaminated objects. While viruses, bacteria, and parasites can all cause various infections, they are not responsible for causing ringworm. Therefore, options A, B, and D are incorrect.