Fungi is one type of pathogen which infects the surface of the skin and nails.
Athletes foot is also caused by fungi
Rough and smooth endoplasmic reticulum
Heat waves can be dangerous, causing illnesses such as heat cramps and heat stroke, or even death. Warmer temperatures can also lead to a chain reaction of other changes around the world. That's because increasing air temperature also affects the oceans, weather patterns, snow and ice, and plants and animals.