Final answer:
The pathogens responsible for tuberculosis, whooping cough, pneumonia, measles, mumps, and smallpox are discharged through the respiratory tract, spread by actions like coughing and sneezing.
Step-by-step explanation:
The pathogens that cause tuberculosis, whooping cough, pneumonia, measles, mumps, and smallpox are discharged through the A. Respiratory tract. These diseases are caused by bacteria, viruses, and fungi that are adapted to using the respiratory tract as a portal of exit. Symptoms like coughing and sneezing can expel these pathogens into the air, making them highly contagious. For instance, a single sneeze can send thousands of virus particles into the air. Moreover, respiratory tract infections from such pathogens have been responsible for a significant number of deaths worldwide, highlighting the importance of effective vaccines and treatments.