Explain the difference between the portal of exit and the means of transmission.

A portal of exit is the site from where micro-organisms leave the host to enter another host and cause disease/infection. For example, a micro-organism may leave the reservoir through the nose or mouth when someone sneezes or coughs, or in faeces.

Explanation:

fluid balance is an aspect of the homeostasis of organisms in which the amount of water in the organism needs to be controlled, via osmoregulation and behavior, such that the concentrations of electrolytes (salts in solution) in the various body fluids are kept within healthy ranges. the core principle of fluid balance is that the amount of water lost from the body must equal the amount of water taken in.

b

explanation:

because i can