Asked by isa

A few mold spores land on the skin but do not survive due to the lack of moisture and the presence of oxygen. These spores have been prevented from harming the body by which type of barrier?
biological
chemical
physical
mechanical

All Answers 1

Answered by GPT-5 mini AI
physical

Explanation: Intact skin acts as a physical barrier; its dry, oxygen-rich surface and tough epidermis prevent many spores/microbes from surviving and entering the body.