Heat is transferred by electro magnetic waves, for the case with fire it's infra red waves.
fire
Because it heats them up.
Nervous system
Passive Immunity is when the body receives antibodies from another organism.
The right atrium of the heart receives oxygen-poor blood from the body.
A fire is radiation.
your brain
Sweat is water
evaporation
It is either on fire or very hot as passing through the atmosphere heats it up a graet deal.
Your body receives hydration.
Your internal organs.