Solution:
Concept: Pathogens are microorganisms that cause diseases in humans.
Diseases caused by pathogens are communicable or infectious.
Organisms that cause disease are known as pathogens.
Hence, pathogen is the correct answer.
Organisms that cause disease are known as [[1]]
Concept: Pathogens are microorganisms that cause diseases in humans.
Diseases caused by pathogens are communicable or infectious.
Organisms that cause disease are known as pathogens.
Hence, pathogen is the correct answer.