Trematodes Assignment

While most of the platyhelminths are free living or endoparasites, which one of the following taxa has an ectoparasitic life cycle?
Trematodes Assignment 1 A)Trematodes Assignment 2 Turbellaria
Trematodes Assignment 1 B)Trematodes Assignment 2 Trematoda
Trematodes Assignment 1 C)Trematodes Assignment 2 Monogenea
Trematodes Assignment 1 D)Trematodes Assignment 2 Cestoda
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Members of phylum Platyhelminthes are called flatworms because their bodies are flattened
Trematodes Assignment 1 A)Trematodes Assignment 2 posteriorly.
Trematodes Assignment 1 B)Trematodes Assignment 2 laterally.
Trematodes Assignment 1 C)Trematodes Assignment 2 anteriorly.
Trematodes Assignment 1 D)Trematodes Assignment 2 dorsoventrally.
Trematodes Assignment 9
Trematodes Assignment 10
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Cells that secrete mucus in the epidermis of the Turbellaria are called
Trematodes Assignment 1 A)Trematodes Assignment 2 parenchyma.
Trematodes Assignment 1 B)Trematodes Assignment 2 rhabdites.
Trematodes Assignment 1 C)Trematodes Assignment 2 cuticle cells.
Trematodes Assignment 1 D)Trematodes Assignment 2 teguments.
Trematodes Assignment 9
Trematodes Assignment 10
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The body of the parasitic flatworms is covered in a syncytial layer called
Trematodes Assignment 1 A)Trematodes Assignment 2 parenchyma.
Trematodes Assignment 1 B)Trematodes Assignment 2 a rhabdite.
Trematodes Assignment 1 C)Trematodes Assignment 2 cuticle layer.
Trematodes Assignment 1 D)Trematodes Assignment 2 a tegument.
Trematodes Assignment 9
Trematodes Assignment 10
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The cells that form a meshwork filling the spaces between muscles and organs that develops from mesoderm is called
Trematodes Assignment 1 A)Trematodes Assignment 2 parenchyma.
Trematodes Assignment 1 B)Trematodes Assignment 2 rhabdite.
Trematodes Assignment 1 C)Trematodes Assignment 2 a cuticle layer.
Trematodes Assignment 1 D)Trematodes Assignment 2 tegument.
Trematodes Assignment 9
Trematodes Assignment 10
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A cuticle is different from a tegument in that a cuticle is _______,while a tegument is
Trematodes Assignment 1 A)Trematodes Assignment 2 syncytial, ciliated.
Trematodes Assignment 1 B)Trematodes Assignment 2 dead, alive.
Trematodes Assignment 1 C)Trematodes Assignment 2 ciliated, dead.
Trematodes Assignment 1 D)Trematodes Assignment 2 alive, syncytial.
Trematodes Assignment 9
Trematodes Assignment 10
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While the previous phyla have used intracellular digestion, within these three phyla extracellular digestion is the norm. Extracellular digestion means that
Trematodes Assignment 1 A)Trematodes Assignment 2 proteolytic enzymes are secreted into the gut.
Trematodes Assignment 1 B)Trematodes Assignment 2 proteolytic enzymes are found in the lysosomes.
Trematodes Assignment 1 C)Trematodes Assignment 2 only parasitic feeding styles are used.
Trematodes Assignment 1 D)Trematodes Assignment 2 there is only one opening to the intestine.
Trematodes Assignment 9
Trematodes Assignment 10
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Another name for a protonephridium is a
Trematodes Assignment 1 A)Trematodes Assignment 2 syncytial layer.
Trematodes Assignment 1 B)Trematodes Assignment 2 microvillus.
Trematodes Assignment 1 C)Trematodes Assignment 2 tegument.
Trematodes Assignment 1 D)Trematodes Assignment 2 flame cell.
Trematodes Assignment 9
Trematodes Assignment 10
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Protonephridia function in
Trematodes Assignment 1 A)Trematodes Assignment 2 waste disposal.
Trematodes Assignment 1 B)Trematodes Assignment 2 respiration.
Trematodes Assignment 1 C)Trematodes Assignment 2 osmoregulation.
Trematodes Assignment 1 D)Trematodes Assignment 2 digestion.
Trematodes Assignment 9
Trematodes Assignment 10
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The nervous system of the flatworms has sensory, motor, and association nerves, and it is organized into a ________ pattern.
Trematodes Assignment 1 A)Trematodes Assignment 2 ladderlike
Trematodes Assignment 1 B)Trematodes Assignment 2 spinal cord
Trematodes Assignment 1 C)Trematodes Assignment 2 endothelial
Trematodes Assignment 1 D)Trematodes Assignment 2 nerve net
Trematodes Assignment 9
Trematodes Assignment 10
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Light-sensitive sense organs in the flatworms are called
Trematodes Assignment 1 A)Trematodes Assignment 2 rheoreceptors.
Trematodes Assignment 1 B)Trematodes Assignment 2 ocelli.
Trematodes Assignment 1 C)Trematodes Assignment 2 auricles.
Trematodes Assignment 1 D)Trematodes Assignment 2 statocysts.
Trematodes Assignment 9
Trematodes Assignment 10
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Sense organs that respond to changes in water current directions are the
Trematodes Assignment 1 A)Trematodes Assignment 2 rheoreceptors.
Trematodes Assignment 1 B)Trematodes Assignment 2 ocelli.
Trematodes Assignment 1 C)Trematodes Assignment 2 auricles.
Trematodes Assignment 1 D)Trematodes Assignment 2 statocysts.
Trematodes Assignment 9
Trematodes Assignment 10
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While a few of the approximately 650 species of the phylum Nemertea live in moist soil or in fresh water, most of them are found
Trematodes Assignment 1 A)Trematodes Assignment 2 in deep-sea vents.
Trematodes Assignment 1 B)Trematodes Assignment 2 in the intertidal and shallow water zones.
Trematodes Assignment 1 C)Trematodes Assignment 2 living as symbionts.
Trematodes Assignment 1 D)Trematodes Assignment 2 living as parasites.
Trematodes Assignment 9
Trematodes Assignment 10
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Which of the following groups includes ectoparasites of fish and amphibians?
Trematodes Assignment 1 A)Trematodes Assignment 2 Monogenea
Trematodes Assignment 1 B)Trematodes Assignment 2 Turbellaria
Trematodes Assignment 1 C)Trematodes Assignment 2 Trematoda
Trematodes Assignment 1 D)Trematodes Assignment 2 Cestoda
Trematodes Assignment 9
Trematodes Assignment 10
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The animals that are leaf-shaped endoparasites, have a tegument, and have complex life cycles are members of the class
Trematodes Assignment 1 A)Trematodes Assignment 2 Hirudinea.
Trematodes Assignment 1 B)Trematodes Assignment 2 Turbellaria.
Trematodes Assignment 1 C)Trematodes Assignment 2 Trematoda.
Trematodes Assignment 1 D)Trematodes Assignment 2 Cestoda.
Trematodes Assignment 9
Trematodes Assignment 10
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Cestodes are monoecious and lack a digestive tract. The reproductive units of the cestodes are called
Trematodes Assignment 1 A)Trematodes Assignment 2 siphonoglyphs.
Trematodes Assignment 1 B)Trematodes Assignment 2 proglottids.
Trematodes Assignment 1 C)Trematodes Assignment 2 opisthaptors.
Trematodes Assignment 1 D)Trematodes Assignment 2 scolices.
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The chain of proglottids is collectively called the ________, and the holdfast or attachment organ is called the
Trematodes Assignment 1 A)Trematodes Assignment 2 strobila, scolex.
Trematodes Assignment 1 B)Trematodes Assignment 2 scolex, opisthaptor.
Trematodes Assignment 1 C)Trematodes Assignment 2 opisthaptor, cercaria.
Trematodes Assignment 1 D)Trematodes Assignment 2 cercaria, strobila.
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Which of the following organisms is a blood fluke?
Trematodes Assignment 1 A)Trematodes Assignment 2 Worms of the genus Fasciolopsis.
Trematodes Assignment 1 B)Trematodes Assignment 2 Worms of the genus Schistosoma.
Trematodes Assignment 1 C)Trematodes Assignment 2 Worms of the genus Taenia.
Trematodes Assignment 1 D)Trematodes Assignment 2 Worms of the genus Clonorchis.
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Members of phylum Nemertea, in general, are most like members of class
Trematodes Assignment 1 A)Trematodes Assignment 2 Monogenea.
Trematodes Assignment 1 B)Trematodes Assignment 2 Turbellaria.
Trematodes Assignment 1 C)Trematodes Assignment 2 Trematoda.
Trematodes Assignment 1 D)Trematodes Assignment 2 Cestoda.
Trematodes Assignment 9
Trematodes Assignment 10
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The rhynchocoel is a cavity that contains the
Trematodes Assignment 1 A)Trematodes Assignment 2 protonephridia.
Trematodes Assignment 1 B)Trematodes Assignment 2 heart.
Trematodes Assignment 1 C)Trematodes Assignment 2 gonads.
Trematodes Assignment 1 D)Trematodes Assignment 2 proboscis.
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In the digenetic trematodes, the first or invertebrate host is called the _________ and the second or final host, which is usually a vertebrate, is called the _________ host.
Trematodes Assignment 1 A)Trematodes Assignment 2 molluscan, amphibian
Trematodes Assignment 1 B)Trematodes Assignment 2 indirect, direct
Trematodes Assignment 1 C)Trematodes Assignment 2 intermediate, complete
Trematodes Assignment 1 D)Trematodes Assignment 2 intermediate, definitive
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The pork tapeworm isFasciolopsis hepatica.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
Trematodes Assignment 10
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The human liver fluke, Clonorchis sinensis, is common in China, and can cause cirrhosis of the liver and death.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
Trematodes Assignment 10
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The fact that some parasites have a first or intermediate host, and a final or definitive host, is reflected in the class name Digenea.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
Trematodes Assignment 10
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The best-known turbellarian is the planarian, which is often used in the laboratory. The generic name of this organism is Clonorchis.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
Trematodes Assignment 10
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The sense organs of the flatworm that help the organism maintain its equilibrium are called rheoreceptors.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
Trematodes Assignment 10
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While most members of class Turbellaria are monoecious, the nemerteans are typically dioecious.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
Trematodes Assignment 10
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Most of the species of phylum Gnathostomulida have been found living between grains of sand or silt.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
Trematodes Assignment 10
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The members of the phylum Gnathostomulida share a characteristic with rotifers because they both have grinding jaws.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
Trematodes Assignment 10
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Of the three phyla discussed in this chapter, all are primarily bilaterally symmetrical.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
Trematodes Assignment 10
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Of the three phyla discussed in this chapter, only the nemerteans have a complete digestive tract.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
Trematodes Assignment 10
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Of the three phyla discussed in this chapter, only the gnathostomulids have a circulatory system.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
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The term proglottid is only used when referring to the cestodes.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
Trematodes Assignment 10
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The parenchyma is different from mesoglea, as it is cellular, and is mesodermal in origin. But, because there is no cavity in this area around the gut, these worms are considered to be acoelomate.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
Trematodes Assignment 10
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Neodermata is a taxonomic name proposed for the trematodes, monogeneans, and cestodes, as they have a unique tegument.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
Trematodes Assignment 10
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In some turbellarians, the yolk that provides nutrition for the developing embryo is contained within the egg cell, a condition known as ectolecithal.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
Trematodes Assignment 10
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Turbellarians are the only flatworms that may be both terrestrial and free-living.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
Trematodes Assignment 10
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Members of the order Acoela are very unusual turbellarians, if indeed they do belong in this group, as they have no gut, and food is digested intracellularly.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
Trematodes Assignment 9
Trematodes Assignment 10
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Building the Aswan High Dam in Egypt has increased the prevalence of schistosomiasis, as it has created more habitats for the snail, which is the intermediate host.
Trematodes Assignment 1 A)Trematodes Assignment 2 True
Trematodes Assignment 1 B)Trematodes Assignment 2 False
A parasite that has a wide range of hosts is described as being
A.
B.
C.
D.
2.  The               sp. has a Zoonotic parasite which can cause hydatid cyst disease in humans.
3.  How would one describe a parasite that affects only one type of host?
A.
B.
C.
D.
E.
F.
4.  Which hatches from the egg of a pseudophyllidean?
A.
B.
C.
D.
5.  A ———– procedure should be used when looking for trematode eggs.
6.  The common name for Thysanosoma actinoides is…
A.
B.
C.
D.
7.  The common name for Fasciola hepatica is…
A.
B.
C.
D.
8.  Paragonimus kellicotti is commonly known as the
A.
B.
C.
D.
9.  Anoplocephala perfoliata causes obstruction and ulceration of the intestinal tract of ————-
10.  A dog acquires Paragonimus kelicotti infection by ingesting
A.
B.
C.
D.
11.  Monezia sp. reside in the the ————— of their definitive hosts.
12.  What is the best way to control cestode parasite problems?
13.  The head of a tapeworm is called a ———— and the chain of progressively maturing proglottids is called a —————-.
14.  Paramphistomum and Cotylophoron are commonly known as
A.
B.
C.
D.
15.  What are 2 disadvantages of a direct fecal smear?
16.  What are the 3 rules for safe handling of feces?
17.  Paranoplocephala mammilana is commonly known as the
A.
B.
C.
D.
18.  The first IH of flukes is a
19.  Platynosomum fastosum is commonly known as the
A.
B.
C.
D.
20.  Alaria canis/felis is commonly known as the
A.
B.
C.
D.
21.  The time required for the eggs to float to the coverslip when performing a fecal floatation using sodium nitrate is ————-.
22.  A parasite with a narrow host range can be described as being ————–.
23.  The ———— and ————- life stages of the fluke are found in the snail IH.
24.  ————– serve as hosts for the Monezia sp. and Anoplocephala sp.
25.  How would a dog become infected with Taenia pisiformis?
A.
B.
C.
D.
26.  The first intermediate host of the flea tapeworm is a ———-. It contains the life stage known as a/an ———–.
27.  Dipyllidium caninum is commonly known as the ————
28.  Fluke eggs are passed in the host’s feces. When they make contact with water, they become ——————-. They then find a ————– intermediate host and become —————-, then become ————–. They then exit the snail and become —————. They then lose their tail and become————–. They are then ingested by the definitive host and become ————–. Finally, they become —————-.
29.  Antihelmintics are used to treat what type of infection/infestation?
A.
B.
C.
D.
30.  The DH for Moniezia benedini is
A.
B.
C.
D.
31.  2 advantages of a fecal smear are:
32.  Taenia saginata causes what?
A.
B.
C.
D.
33.  This is commonly know as the Broad fish tapeworm.
A.
B.
C.
D.
34.  Define prepatent period.
35.  Heterobilharzia americana is commonly known as the
A.
B.
C.
D.
36.  What are the 6 aspects of a gross fecal exam?
37.  Dicroelium dendriticum is commonly known as the
A.
B.
C.
D.
38.  Taenia solium causes
A.
B.
C.
D.
39.  List 4 negative effects that parasites can have on their host.
40.  Protozoans are multicellular organisms.
A.
B.
Tumwine Edward

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