insect bites. contaminated food. genetically from parents. pathogens in the air.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Infectious diseases can be passed from organism to organism by all of the following except
Possibilities:
- insect bites.
- contaminated food.
- genetically from parents.
- pathogens in the air.

genetically from parents.