2. 1x 2x 3x 4x 5x Latin Flatworms & Roundworms Mollusks & Annelids Is it the Truth? 1x 2x 3x 4x 5x 1x 2x 3x 4x 5x 1x 2x 3x 4x 5x 1x 2x 3x 4x 5x Mystery Bag

3. Gaster- (a) Fuel (b) Stomach (c) Expel (d) Churn

4. Pseudo- (a) Real (b) Nutrition (c) False (d) Aquatic

5. -vascula (a) With vessels (b) With light (c) With movement (d) With velocity

6. Mollusca (a) Shelled (b) Little Rings (c) Tentacles (d) Soft-bodied

7. -chaete (a) Bristle (b) Segment (c) Movement (d) Organ

8. Which organism would BEST represent the primary host of a beef tapeworm? (a) Cow (b) Human (c) Snail (d) Pig

9. Elephantiasis results from a filarial worm infection and can cause severe swelling in the tissues of which human body system? (a) Digestive (b) Lymphatic (c) Circulatory (d) Nervous

10. Once inside the primary host, a tapeworm will latch onto the tissue of which organ? (a) Esophagus (b) Stomach (c) Intestine (d) Kidney

11. A true coelom differs from a pseudocoelom in that a true coelom… (a) The cavity does not contain fluid (b) Body wall muscles are separated from the gut (c) Circulatory system is surrounded by endoderm (d) The cavity is filled with endoderm

12. A lack of a respiratory system in flatworms is compensated for by their… (a) Flat body plan (b) Bilateral symmetry (c) Gastrovascular cavity (d) Parasitic lifestyle

13. A larva of the trichina roundworm must encyst itself into which type of host tissue? (a) Adipose tissue (b) Muscle tissue (c) Nervous tissue (d) Epithelial tissue

14. A tapeworm can be introduced into a human host through all the following improperly cooked foods except… (a) Chicken (b) Beef (c) Fish (d) Pork

15. The mastax evolved in rotifers in order to enable which of the following digestive actions? (a) Chemical digestion (b) Mechanical digestion (c) Releasing acids (d) Manufacturing enzymes

16. Terrestrial snails differ from aquatic snails in that land snails… (a) Are hermaphroditic (b) Have separate sexes (c) Possess gills (d) Lack tentacles

17. Mosquitoes and leeches both secrete an anti-coagulant during feeding, a salivary secretion designed to… (a) Prevent bacteria from entering bite (b) Allow host blood to flow freely (c) Initiate the platelets to begin clotting (d) Spread infection of intestinal bacteria

18. The radula, a feature of some mollusks BUT not of annelids, is an adaptation used for… (a) Feeding (b) Communication (c) Excretion (d) Reproduction

19. To move in a terrestrial environment, an earthworm will use ALL the listed structures except… (a) Setae (b) Mucus (c) Parapodia (d) Muscles

20. The circulatory system of a gastropod is BEST described as… (a) A closed-system (b) An open-system (c) Lacking a heart (d) Supporting a fast metabolism

21. (a) Having tentacles (b) Having setae (c) Inhabiting aquatics (d) Lacking setae Leeches differ from both classes of oligochaetes and polychaetes by…

22. The typhlosole of an earthworm is analogous to which of the following human structures? (a) Stomach mucosa (b) Oral cavity teeth (c) Intestinal villi (d) Esophageal epithelium

23. (a) True (b) False A tapeworm is so highly specialized it does not require a mouth, only a scolex and suckers.

24. In addition to carrying viruses, bacteria, and protozoans, mosquitoes have been known to carry tiny worms. (a) True (b) False

25. Although hermaphroditic, earthworms require a mate in order to cross- fertilize. (a) True (b) False

26. Annelids are a class of segmented worms that lack a complete digestive tract. (a) True (b) False

27. Exchange of gases best occurs across a thick and dry membrane like skin. (a) True (b) False