Question

Match the numbered organism with the correct lettered term. Answers may be used more than once, and an organism may have more than one answer.

1. ___ Balantidium coli
2. ___ Echinococcus granulosus
3. ___ Fasciola spp.
4. ___ Leishmania spp.
5. ___ Plasmodium falciparum
6. ___ Plasmodium vivax
7. ___ Taenia spp.
8. ___ Toxoplasma gondii
9. ___ Trypanosoma
10. ___ Wuchereria bancrofti

A. Miracidia
B. Bradyzoites
C. Schizogony
D. Microfilaria
E. Hydatid cyst
F. Cysticerci
G. Trophozoites
H. Amastigotes
I. Hypnozoites
J. Flagellated trypanosomes

Accepted Answer

Step 1: Identify the type of organism for each numbered item (e.g., protozoan, helminth) and recall their life cycle stages or forms relevant to the lettered terms. Step 2: For Balantidium coli (1), recognize it as a ciliate protozoan and match it with the appropriate life stage or form from the options. Step 3: For Echinococcus granulosus (2) and Taenia spp. (7), both are cestodes (tapeworms), so identify terms related to larval cyst forms such as hydatid cyst (E) or cysticerci (F). Step 4: For protozoan parasites like Leishmania spp. (4), Plasmodium falciparum (5), Plasmodium vivax (6), Toxoplasma gondii (8), and Trypanosoma (9), match their specific life cycle stages such as trophozoites (G), amastigotes (H), schizogony (C), hypnozoites (I), or flagellated trypanosomes (J). Step 5: For Wuchereria bancrofti (10), a filarial nematode, identify the larval stage term microfilaria (D) and assign it accordingly.

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Key Concepts

Parasitic Life Cycles and Stages

Protozoan vs Helminth Parasites

Terminology of Parasitic Forms