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WORM VOCAB ONLY

WORM VOCAB ONLY. Seta (Setae). One of the external bristles on annelids ______________ A pair of nerve clusters that serve as a brain at the anterior end of some invertebrates _________________ A thickened section around an earthworm’s body that ______________

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WORM VOCAB ONLY

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  1. WORM VOCAB ONLY

  2. Seta (Setae) One of the external bristles on annelids ______________ A pair of nerve clusters that serve as a brain at the anterior end of some invertebrates _________________ A thickened section around an earthworm’s body that ______________ produces mucous for reproduction Cerebral ganglia clitellum

  3. Flame cell In a flatworm, a cell that collects nitrogen waste and excess body water for the excretory system and excretes it through the skin ______________ An organism that produces both male and female gametes (sperm & eggs) _________________ An infolding of the intestinal wall of an earthworm that increases surface area to absorb more nutrients ________________ hermaphrodite typhlosole

  4. prostomium Fleshy flap of skin that overhangs the mouth of an earthworm and senses light/dark ________________ A NON-CELLULAR LAYER in parasitic round worms that protects them from the host’s digestive and immune system (also seen in earthworms)_________________ A structure in a female or hermaphrodite that receives sperm ________________ cuticle Seminal receptacle

  5. tegument A continuous sheet of FUSED CELLS that covers the external surface of a fluke or tapeworm & protects the worm from the host’s digestive and immune system __________________ Tubule through which some invertebrates (like segmented and round worms) eliminate nitrogen waste _________________ Dividing walls that separate the coelom into compartments in an earthworm ________________ nephridia septa

  6. closed Type of circulatory system in whichblood is contained in vessels______________ Type of development in which young start as an immature larva and must undergo metamorphosis to become adults _______________ Type of reproduction in which offspring are produced by combining genetic material from 2 parents ________________ indirect sexual

  7. pharynx Muscular part that pulls food into the digestive system______________ 5 pair of muscular tubes which connect the dorsal and ventral blood vessels and force blood through the circulatory system ________________ A knob shaped organ bearing hooks and suckers that lies at the anterior end of a tapeworm ________________ Aortic arches scolex

  8. proglottid One of the many body segments of a tapeworm containing reproductive organs ______________ The structure that stores soil waiting to be digested in earthworms _________________ A muscular region in the digestive tract of earthworms that crushes and grinds food ________________ crop gizzard

  9. Primary host The host in which the adults of a parasitic worm live and reproduce ______________ A disease characterized by muscle pain and stiffness caused by a parasitic blood fluke of the genus Schistosoma _________________ A carbohydrate found in the cocoons of earthworms and the exoskeletons of some arthropods ________________ schistosomiasis chitin

  10. Seminal vesicles Structure that stores sperm made to give away to other worms ______________ Type of coelom seen in earthworms in which the body cavity is lined on both sides by mesoderm _________________ Flatworm phylum that includes Planaria, flukes, and tapeworms ________________ Eucoelom or “true” coelom Platyhelminthes

  11. clitellum Ring around the body of an earthworm that produces mucous for reproduction ______________ Traction bristles on the ventral surface of an earthworm _________________ Round worm phylum that includes Ascaris, pinworms, hookworms, and filarial worms________________ setae Nematoda

  12. ovary Reproductive organ that produces eggs ______________ A disease caused by a parasitic round worm of the genus Trichinella; characterized by muscle pain and stiffness _________________ Opening for digestive waste in an earthworm ________________ trichinosis anus

  13. testes Reproductive organ that produces sperm ______________ A cluster of nerve cells_______________ Segmented worm phylum which includes earthworms and leeches ________________ ganglia Annelida

  14. direct Development in which offspring hatch or are born with a similar shape as the adult form and must just grow bigger ______________ Type of symmetry in whichdividing the animal produces2 mirror images _______________ Ability to regrow lost body parts ________________ bilateral regeneration

  15. asexual Type of reproduction in which offspring are produced from the genetic material of only one parent______________ Body system that removes nitrogen waste and maintains the balance of ions/water _______________ Digestive organ in an earthworm where nutrients are absorbed ________________ excretory intestine

  16. Gastrovascular cavity Shared one opening digestive/circulatory space seen in Planaria______________ Joining of sperm and egg outside the mother’s body_______________ Maintaining the balance of water and ions in the body _______________ External fertilization osmoregulation

  17. cephalization Concentration of a “brain” and sensory organs at the anterior end of an animal______________ Outside body covering on an animal_______________ Body system that exchanges gases with the environment________________ integument respiratory

  18. Sperm groove Line that runs from the male genital pore to the clitellum along which sperm travels______________ Type of coelom seen in flatworms with no space around the internal organs_______________ acoelom

  19. Male genital pore Opening for sperm leaving an earthworm to be given away ______________ Space around body organs ______________ Organism with spiral determinate cleavage whose blastopore becomes its mouth ________________ coelom protostome

  20. Oligochaeta invertebrates Class to which earthworms belong ______________ Organisms without a backbone _______________ Kind of circulatory system in whichblood is NOT contained in vessels and flows loose inside the coelom ____________ open

  21. Acoelom Type of coelom in which there is NO space and mesoderm fills the area between ectoderm ____________________ and endoderm Type of coelom in which mesoderm Is found lining the outside body wall and surrounding the gut __________________ Type of coelom in which mesoderm lines the outside body wall but is NOT found around the gut ____________________ eucoelom pseudocoelom

  22. excretory Body system for removing nitrogen waste ____________________ Body system for transporting nutrients and oxygen around in body ____________________ Body system that exchanges gases with the environment __________________ Body system that maintains the balance of water/ions(osmoregulation) __________________ circulatory respiratory excretory

  23. nervous Body system for receiving info about the environment and responding ________________ Body system for obtaining nutrients ____________________ Body system that produces offspring __________________ Body system that moves the organism or moves substancesinside the body __________________ digestive reproductive muscular

  24. skeletal Body system that providessupport and protection ______________________ Body system that makes hormoneswhich control other body systems ________________ Body system that deals withwhat covers the animal __________________ Type of cleavage pattern in which cells stack on top of each other and decide later on what they will become ______________ endocrine integumentary Indeterminateradial cleavage

  25. Hydrostatic skeleton A skeleton formed by putting fluidinto the coelom space __________________ Cleavage pattern in which cells twist as they divide and decide early what they will become ____________________ Waste produced in body cells by the breakdown of proteins and nucleic acids and handled by the excretory system _______________________________ Determinate spiral cleavage Nitrogen waste

  26. Label the directions DORSAL A.__________________ ANTERIOR POSTERIOR __________________B D_______________ VENTRAL ___________________ C Animation from: http://bestanimations.com

  27. NAME THE TYPE OF COELOM Acoelom Eucoelom Pseudocoelom Images from: http://www.lander.edu/RSFOX/310images/310bilatImage.html

  28. NAME THE TYPE OF SYMMETRY Radial Bilateral Asymmetry Images from: http://www.uic.edu/classes/bios/bios100/labs/radial.jpg http://www.uic.edu/classes/bios/bios100/labs/bilateral.jpg http://vilenski.org/science/safari/animals/other/classify_animals.html

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