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| 1 | Characteristics of polychaetes include… |
 | A) | A well-defined head |
| B) | Parapodia |
| C) | No clitellum |
| D) | All of the above are correct |
| E) | None of the above is correct |
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| 2 | The larva form of a polychaete annelid is called a(n)… |
| A) | Pygidium |
| B) | Pilidium |
| C) | Trochophore |
| D) | Nauplius |
| E) | None of the above is correct |
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| 3 | The Oligochaeta… |
| A) | Are primarily marine dwellers |
| B) | Have a prominent head |
| C) | Have separate sexes |
| D) | Have a trochophore larva |
| E) | None of the above is correct |
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| 4 | The typhlosole in the earthworm… |
| A) | Is an organ of locomotion |
| B) | Is the area of the gut that increases the surface area for the absorption of food |
| C) | Grinds the food |
| D) | Produces secretions during mating |
| E) | None of the above is correct |
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| 5 | Gas exchange in the earthworm occurs through the… |
| A) | Gills |
| B) | Nephridia |
| C) | Skin |
| D) | Setae |
| E) | None of the above is correct |
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| 6 | The cocoon in the earthworm is produced by the… |
| A) | Clitellum |
| B) | Prostomium |
| C) | Calciferous glands |
| D) | Seminiferous tubules |
| E) | None of the above is correct |
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| 7 | Some characteristics typical of leeches would include which of the following? |
| A) | Oral and posterior suckers, clitellum, no setae |
| B) | Setae, clitellum, and separate sexes |
| C) | Parapodia, no setae, hermaphroditism |
| D) | Oral and posterior suckers, separate sexes, and setae |
| E) | None of the above is correct |
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| 8 | Leeches are members of the class… |
| A) | Errantia |
| B) | Oligochaeta |
| C) | Hirudinea |
| D) | Polychaeta |
| E) | None of the above is correct |
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| 9 | Metamerism may have evolved independently in the deuterostome lineages, and perhaps twice in protostomes, including annelids. |
| A) | True |
| B) | False |
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| 10 | Annelids belong to the lophotrochozoan protostome branch of the animal kingdom. |
| A) | True |
| B) | False |
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| 11 | Which of the following is NOT present in the Annelida? |
| A) | Cerebral ganglia |
| B) | Closed circulatory system |
| C) | Well-developed nephridia |
| D) | A true pseudocoelom |
| E) | All of the above are correct |
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| 12 | The Annelida have bodies divided into similar rings called… |
| A) | Lophophores |
| B) | Trochophores |
| C) | Segments |
| D) | Prostomia |
| E) | Annual rings |
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| 13 | Which of the following is NOT correct? |
| A) | The annelid body typically has an anterior prostomium |
| B) | The annelid body typically has a posterior pygidium bearing the anus |
| C) | The oldest segments are at the anterior end and the youngest segments at the posterior end |
| D) | Most annelids have a coelom developing embryonically as a Schizocoel |
| E) | Most annelids have an internal supporting structure, the endoskeleton |
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| 14 | Separation of the hydrostatic skeleton into a series of coelomic cavities greatly increases its efficiency because the force of local muscle contraction within a segment is transferred throughout the entire animal. |
| A) | True |
| B) | False |
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| 15 | Errant polychaetes are mostly predators and scavengers whereas sedentary polychaetes feed on suspended particles or are deposit feeders. |
| A) | True |
| B) | False |
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| 16 | Many polychaetes have respiratory pigments such as… |
| A) | Hemoglobin |
| B) | Chlorocruorin |
| C) | Hemerythrin |
| D) | All of the above are correct |
| E) | None of the above is correct |
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| 17 | Some polychaetes live most of the year as sexually immature animals called akinetes. An example of this is the palolo worm, which lives in burrows among coral reefs. |
| A) | True |
| B) | False |
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| 18 | Swarming by the palolo worm may be adaptive because the synchronous maturation of all the epitokes ensures the maximum number of fertilized eggs. |
| A) | True |
| B) | False |
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| 19 | Which of the following pairs is incorrect? |
| A) | Notopodium—dorsal part of parapodium |
| B) | Neuropodium—ventral part of parapodium |
| C) | Nereis—clam worm |
| D) | Fanworms—tubeworms |
| E) | Earthworms—hirudineans |
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| 20 | Charles Darwin showed how earthworms enrich soil by bringing subsoil to the surface and mixing it with the topsoil. Their activities are important in the aeration of the soil. |
| A) | True |
| B) | False |
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| 21 | Which of the following is incorrect? |
| A) | Calciferous glands—secrete calcium ions into the gut |
| B) | Crop—thin-walled temporary storage area |
| C) | Gizzard—grinds food into small pieces |
| D) | Typhlosole—guides food into the rectum |
| E) | Chloragogen tissue—yellowish tissue serving as a center for the synthesis of glycogen and fat |
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| 22 | Annelids have a double transport system: coelomic fluid and circulatory system. |
| A) | True |
| B) | False |
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| 23 | Each segment of the earthworm except the first three and the last one bears a pair of … |
| A) | Protonephridia |
| B) | Mesonephridia |
| C) | Metanephridia |
| D) | Malpighian tubule |
| E) | None of the above is correct |
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| 24 | For rapid escape movements most annelids have one to several very large axons commonly called… |
| A) | Neurosecretory axons |
| B) | Cerebral axons |
| C) | Ventral axons |
| D) | Typhlosolic axons |
| E) | None of the above is correct |
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| 25 | When mating, earthworms extend their anterior ends from their burrows and bring their ventral surfaces together. They are held together by mucus secreted by their… |
| A) | Clitellum |
| B) | Sperm funnels |
| C) | Cocoon |
| D) | Seminal vesicles |
| E) | None of the above is correct |
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| 26 | Tubifex is an alternate host necessary in the life cycle of Myxobolus cerebralis, a parasite that causes a very serious condition in rainbow trout called whirling disease in North America. |
| A) | True |
| B) | False |
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| 27 | True bloodsucking leeches including the so-called medicinal leech Hirudo medicinalis have “jaws” for cutting tissues. |
| A) | True |
| B) | False |
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| 28 | Regardless of its relationship to other phyla, Annelida remains a well-accepted paraphyletic group. |
| A) | True |
| B) | False |