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48 Cards in this Set
- Front
- Back
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What phylum do flatworms belong to?
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Platyhelminthes
(Platy-hel-min-thes) |
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What is a quick way to remember the Phylum Platyhelminthes has flatworms in it?
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"Platy Flaty"
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What are the two main types of categories that Platyhelminthes are divided into?
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Tubellarians and Flukes
(Tu-bell-arian) |
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What are the two types of tubellarians?
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- Marine Flatworms
- Terrestrial Flatworms |
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What is the process called in which Marine Flatworms ripple their skin to make themselves move?
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Undulate
(Un-dul-ate) |
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What is a nerve cell called in a Platyhelminthes?
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Ganglia
(Gang-lia) |
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What quality do ganglia have?
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They are light-sensitive (they are also nerve cells in Platyhelminthes)
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What does a Platyhelminthes use for movement?
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Muscle cells and Cilia
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What type of cells are used to filter and shoot out excess waste from Platyhelminthes/flatworms?
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"Flame" cells
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What is a type of Fluke?
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Tape worm
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Where does a Tape Worm live inside a host?
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In the intestines
(in-test-in-es) |
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What is the main characteristic about Flukes?
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They are parasitic to organisms
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What do all flatworms have for nutrition?
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Gastrovascular Cavities (one entrance/exit)
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What are the three main things a Platyhelminthes can be?
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- Carnivore
- Scavenger - Parasite |
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What organs do Platyhelminthes use for respiration and circulation?
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They have no organs for either of these processes
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How does oxygen and carbon go into the body of a Platyhelminthes if it lacks the organs for its respiration system to function otherwise?
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Diffusion
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How do Platyhelminthes reproduce sexually?
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They can mate with any worm because they are hermaphrodites
(contain the sexual organs for males and females) (Herma-phro-dites) |
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How do Platyhelminthes reproduce asexually?
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Binary Fission
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What is the coelom structure for a Platyhelminthes/flatworm?
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Acoelomate Structure
(A-coe-lo-mate) |
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What symmetry do Platyhelminthes have?
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Bilateral Symmetry (can only be cut one way to be made even)
(Bi-later-al Sym-metry) |
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What are the seven major characteristics of a Platyhelminthes?
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- have SOME internal organ systems
- Bilateral Symmetry - Cephalization (Ceph-ali-zation) - Acoelomate Body-Plan - Flame Cells filter and remove excess water - Soft and flat - Light-sensitive eye-spot |
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What animals are in the Phylum Nematoda?
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Round Worms
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What is a quick way to remember that round worms are in the Phylum Nematoda?
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The "O" in NematOda is round, just like round worms
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What are four examples of round-worms in the Phylum Nematoda?
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- Trichinosis-Causing Worms (Tri-chin-osis)
- Ascarid Worms (As-carid) - Filarial Worms (Fil-ari-al) - Hook Worms |
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What carries Trichinosis-Causing Worms?
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Uncooked Pork
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What type of round-worms burrow into your organs and tissue causing great pain?
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Trichinosis-Causing Worms
(Tri-chin-osis) |
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What type of Nematoda/Round-Worm causes malnutrition?
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Ascarid Worms
(As-carid) |
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What is usually the carrier of Ascarid Worms?
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contaminated food or water
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What type of round-worm burrows into the intestine, then blood, then lungs, then throat, then back to intestine sometimes clogging it?
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Ascarid Worm
(As-carid) |
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What type of Nematoda/Round-worm blocks fluid passages of the lymphatic system?
(lym-pha-tic) |
Filarial Worms
(Fil-ari-al) |
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What type of Nematoda/Round-worm can cause Elephantiasis?
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Filarial Worms
(Fil-ari-al) |
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What type of disease can a Filarial Worm sometimes cause in which the lymphatic system is blocked?
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Elephantiasis
(Elephant-ia-sis) |
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What fraction of people do Hookworms infect on Earth?
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About 1/4
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How do Hookworms weaken their host?
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feeding on their blood
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How do Hookworms enter someone?
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By ingestion or by an unprotected foot touching the soil where they are
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What type of Nematoda/Round-Worm weakens their host by feeding on their blood?
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Hookworms
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How do Nematoda/Round-Worms reproduce?
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***ONLY sexually (first one so far that reproduces strictly sexually)
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How do Nematoda/Round-Worms reproduce sexually?
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By internal fertilization
(fert-ili-zation) |
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What type of feeders are Nematoda/Round-Worms?
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Carnivorous
(Carn-iv-orous) |
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What do some Nematoda/Round-Worms feed on?
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Algae Fungi and/or organic matter
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What type of digestive system do Nematoda/Round-Worms have?
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A digestive tract (***Important; mouth and anus) (First one to have digestive tract so far)
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How do Nematoda/Round-Worms move?
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- Use muscles
- Pseudocoelom - use both to form hydrostatic skeleton (P-seudo-coe-lom) |
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What are the eight major characteristics of a Nematoda/Round-Worm?
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- Slender, unsegmented, and tapered at both ends
- **Many are parasitic or plants and animals - **Have digestive tract with two openings - Most are free-living and inhabit soil, salt flats, aquatic sediment, and water - Food moves in ONE direction though the digestive tract - **Bilateral Symmetry (Bi-later-al Sym-metry) - Have specialized tissues and organs that carry out specific body functions - Have a pseudocoelom or "false coelom" |
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How many ways does food move through the digestive tract of a Nematoda/Round-worm
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One way (**Important)
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What kind of symmetry do Nematoda/Round-Worms have?
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Bilateral Symmetry
(Bi-later-al) (Sym-metry) |
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What is a key characteristic about Nematoda/Round-Worms?
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They are parasitic (**Important)
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Do Nematoda/Round-Worms have specialized organs and tissues?
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Yes
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How many openings does the Digestive Tract of a Nematoda/Round-Worm have?
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2 (Anus and Mouth)
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