The integumentary, skeletal, and circulatory systems all play a role in protecting the body against a

Pathogen.

Explanation: Every part of the body needs to work together to protect itself from viruses, or pathogens.

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a

yes it is weird but true