Praxis 5005 Practice Test Practice Question
Which of the following types of pathogen is responsible for the common cold?
Correct Answer: B
Rationale: The common cold is primarily caused by viruses, particularly rhinoviruses, which invade the upper respiratory tract and lead to symptoms like sneezing and coughing.
Option A (Bacterium) is incorrect because bacteria typically cause infections like strep throat, not viral illnesses such as the cold.
Option C (Fungus) is not responsible for the common cold; fungi are more associated with conditions like athlete's foot or ringworm.
Option D (Protozoan) refers to single-celled organisms that can cause diseases like malaria, but they do not cause the common cold. Thus, viruses are the true culprits behind this widespread illness.
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