Questions and Answers
Class Monogenea has what type of organisms?
Ectoparasites found on the skin or gills of fish
An example of an organism from class Turbellaria is?
Planarian
A condition where the connective tissue grows and the scrotum, legs, and arms can swell?
Elephantiasis
This class has leaf-like bodies and is comprised of parasitic flukes?
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The first host a parasite lives and grows in is called?
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How long can a tapeworm grow to be?
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What is the round worm phylum?
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What is the tapeworm class?
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What is the flatworm phylum?
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What is the class of free-living flatworms?
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The class containing digenetic flukes is?
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The class containing flukes with a single host is?
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What is the muscular tube through which the flatworm can suck food into its gut?
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What are interconnected glandular cells making up the excretory system of a roundworm?
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What flatworm structures are used for excretion and osmoregulation?
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What is the intermediate host of a blood fluke?
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How many digestive tract openings does a roundworm have?
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What is the term for an organism which is mature, pregnant, and full of eggs?
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What are the intermediate hosts of a canine or feline heartworm?
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What are bloodsucking roundworms living in the small intestines that can penetrate the soles of your feet?
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What is a hollow, fluid-filled cavity that is partially lined by mesoderm?
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What condition is described as swollen tissue caused by obstruction of lymph fluid?
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What is the main part of the body of a tapeworm made up of smaller repeated units?
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What is the most common parasitic worm infection in people worldwide, known as 'wandering worms'?
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What are animals that lack a true cavity called?
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What disease involves thickening and hardening of the skin, often a result of Filarial worm infection?
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How many digestive tract openings does a flatworm have?
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What is the scientific term for eyespots that can detect light intensity?
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What is the thick, flexible outer covering of a roundworm, shed during juvenile growth stages?
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What are the cup-shaped cells that expel excess liquids from a flatworm's body?
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What is an individual segment of a tapeworm body called, containing muscles, nerves, and sexual organs necessary to survive and reproduce?
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What parasite is known to cause Schistosomiasis?
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Which organs do most tapeworms live?
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What is the term for an organism that is not a parasite?
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What is the number of tapeworms known to infect people?
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What are the projections on a planarian that gives it an anterior and triangular shape?
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What is the process in which flatworms breathe?
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What term describes animals with three fundamental cell layers?
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What is the concentration of sense organs and nervous system control at the anterior end of the body called?
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What is the anterior structure on a tapeworm used for attachment?
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What is the least complex of all types of worms?
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What is the description of a swimming fork-tailed larvae of a blood fluke?
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What is the disease characterized by a decrease in the number of red blood cells or amount of iron in the blood?
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What is another name for the protective syncytial tegument of a flatworm?
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What are the most life-threatening canine worms?
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What are parasitic nematode worms that can cause a potentially serious infection; their best-known intermediate host is pigs?
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What is the process in which two flatworms try to get a penis in the genital pore of the other?
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Study Notes
Class Monogenea and Related Organisms
- Class Monogenea consists of ectoparasites primarily found on the skin and gills of fish.
- Examples of organisms within the flatworm category include Planarians, which belong to class Turbellaria.
- Class Trematoda is characterized by parasitic flukes with leaf-like bodies.
Parasitic Lifecycle and Hosts
- The first host for parasites, where they grow in juvenile stages, is called the intermediate host.
- Blood flukes use snails as their intermediate hosts, while heartworms rely on mosquitoes.
Worm Types and Characteristics
- Tapeworms, classified under Cestoda, can grow up to 40 feet in length.
- Roundworms belong to the phylum Nematoda, with two openings in their digestive tracts.
- Flatworms are members of the phylum Platyhelminthes and feature one digestive tract opening.
Anatomical Features and Functions
- The pharynx serves as the muscular tube for flatworms to ingest food.
- Protonephridia are structures in flatworms responsible for excretion and osmoregulation.
- Developing tapeworms consist of strobila, the main body composed of proglottids, which are individual segments with reproductive organs.
Health Conditions Related to Parasitism
- Elephantiasis is a condition caused by the thickening of skin and can result from filarial worm infections, leading to severe swelling.
- Lymphedema describes the swelling caused by lymph fluid obstruction.
Sensory and Reproductive Features
- Ocelli are eyespots found in flatworms that can detect light intensity.
- The process of penis fencing occurs among flatworms, where they attempt to mate by inserting a penis into the partner's genital pore.
Other Key Information
- Hookworms cause infections in the small intestines and thrive in warm, moist soils; they can penetrate skin through the feet.
- Anemia is a disease linked to a decrease in red blood cells or iron levels in the blood.
- The neodermis is the protective outer layer of flatworms, also known as the syncytial tegument.
Miscellaneous Facts
- The most prevalent parasitic worm infection globally is caused by Ascaris, also termed "wandering worms."
- Six different species of tapeworms are known to infect humans.
- Tripoblastic organisms possess three foundational cell layers, enhancing their complexity compared to simpler worms.
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Description
This quiz explores the Class Monogenea, focusing on ectoparasites and their characteristics. You'll encounter terms related to parasitic organisms and their classifications. Test your knowledge of key definitions and examples related to this fascinating class.