Parasite Quiz 4 2008.2 - key

Parasite Quiz 4 2008.2 - key - b How many of these are...

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EEB 341 2008.2 Name/Section_________________ Parasitology Lab Quiz 4 (30pts) KEY ***Use back of quiz if you need more room for answers to any questions. Part I (15pts ) 1. a. This arthropod intermediate host belongs to the ORDER: PHTHIRAPTERA b. The arthropod contains a juvenile stage of another parasite, belonging to the ORDER: CYCLOPHYLLIDEA c. What is this juvenile stage called? CYSTICERCOID 2. a. This organism belongs to the ORDER: PSEUDOPHYLLIDEA b. Members of Cestodaria have bodies that are divided into 3 major parts, what are they? SCOLEX, NECK, STROBILUS 3. a. This organism belongs to the INFRACLASS: MONOGENEA b. What is the name of this structure (be specific)? OPISTHAPTOR c. What is the sex of this organism (male, female, both)? BOTH 4. a. This organism belongs to the PHYLUM: NEMATODA b. What type of body cavity does this organism possess? PSEUDOCOEL c. What is the sex of this organism (male, female, both)? MALE 5. a. __________ refers to one complete set of reproductive structures in tapeworms.
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Unformatted text preview: b. How many of these are present in each segment shown here? PROGLOTTID, 2 Part II Short Answer (4pts) 6. List 2 differences between Pseudophyllidean and Cyclophyllidean tapeworms. Pseudophyllidean Cyclophyllidean 1. DIFFERENCES IN SCOLEX STRUCTURE, LIFE STAGES, GENITAL OPENING LOCATION AND NUMBER, ONE IS MORE PRIMITIVE, THE OTHER MORE DERIVED, ETC Part III Short Answer 2 (11pts) USE BACK OF PAPER IF NEEDED 7. List in order all the life stages of a typical Pseudophyllidean tapeworm starting with the egg and ending with the adult (HINT: there are 5 stages total). EGG – CORACIDIUM – PROCERCOID – PLEUROCERCOID - ADULT 8. Describe the life cycle pathway of an ascarid nematode starting from the egg and ending with the adult (outline all the systems through which it travels in the host). EGG LEAVES WITH FECES, INGESTED, LARVAE MOVES FROM DIGESTIVE SYSTEM TO CIRCULATORY, TO RESPIRATORY, AND BACK TO DIGESTIVE....
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