Infectious diseases are caused by

StephEd007

6 months ago

Option D (protozoa) is the most biologically accurate answer because protozoa are a recognised group of pathogenic microorganisms responsible for several major infectious diseases — including malaria (Plasmodium), sleeping sickness (Trypanosoma), amoebic dysentery (Entamoeba histolytica), and giardiasis.

While bacteria (Option A) also cause infectious diseases, the question gives multiple possible agents — but only one option represents a complete group of pathogenic organisms without mixing harmless species. ‘Protists’ is too broad, and ‘Amoeba’ refers to a single genus, not a whole disease-causing category. Protozoa is the only answer that correctly names a whole group of infectious agents.

taofeekat123

1 year ago

there are two answers in a question