The causative agent of African trypanosomiasis is Trypanosoma brucei (two forms). The disease is known to have a high mortality rate, not only among people, but among cattle, which was one of the reasons that parts of Africa could not be settled. May 21, 2019 · Plus One Botany Biological Classification Multiple Choice Questions and Answers. Question 1. The life form used as indicators of pollution (A) Lichens (B) Protozoa (C) Algae (D) Agaricus Answer: (A) Lichens. Question 2. Kingdom monera comprises (A) Amoeba, Bacteria,Trypanosoma (B) Bacteria, Viruses,Virolds (C) Archaebacteria, Eubacteria, Mycoplasma