Although both Naegleria fowleri and Acanthamoeba are found in many water supplies, where they are especially abundant?

The vector of transmission for Trypanosoma brucei is: 

Each of the following statements about Trichomonas vaginalis is true except:

Identify the organism below that was found in a patient with megacolon.

1. Which of the following organisms injures its host primarily by inflicting enzymatic damage?

Which of the following stages of E. hystolytica best describes the infective form and where it is found?

Which of the following statements about Naegleria folweri is correct?

Up to 90% of patients with suspected cases of Entamoeba histolytica are actually infected with the morphologically similar, non-pathogenic organism _________________.

Match these:

If a bank’s ratio of capital to assets is 0.2 and its return on assets is 2%, what is its return on equity?