Entomology 301

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Entomology 301
2013-10-06 18:46:26

Test 1
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  1. What is the system hierarchy from braod to specific?
    Kingdom, Phylum, Class, Order, Family , Genus, Species
  2. Who developed the system of taxonomy?
    Carl Linnaeus
  3. What are some common characteristics of the phylum arthropoda?
    segmented bodies, exoskeleton, paired jointed appendages
  4. What are the five classes of Arthropoda?
    Arachnida, Crustacea, Diplodia, Chilopida, Insecta(Heaxpoda)
  5. What are the two main identifying characteristics of the class Arachnida?
    • Cephalothorax,abdomen,¬†
    • Chelicerae - fangs (one pair)
    • Pedipals - sensory organs
    • Mouthparts - iercing/sucking/chewing
  6. What is the definition of metamorphosis?
    The radical change in shape physiology and behavior that occurs when an animal matures?
  7. What is ametamorphosis?
    Very little change from immature to adult sstage
  8. What are the four main orders in Aracnida?
    • Araneida: Spiders
    • Acari: Mites and Ticks
    • Scorpionida: Scorpions
    • Phalangida: Daddy Long Legs
  9. What are the main identifying factors of the ORDER araneida?
    • cephalothorax,abdomen - distinguishable
    • 4 pairs of legs
    • produce silk
  10. What are some general characteristics on the ORDER Acari?
    • Cephalothorax and abdomen indistinguishable
    • body oval and compact
  11. What are some characteristics of the ORDER Phalangida?
    • Body oval and compact
    • no distinction of body segments
    • long slender legs

    They eat plant juices and scavenge
  12. What are some characteristics of the ORDER scoprionida?
    • Pedipalps - large, claws for grasping
    • Abdomen - broadly joined to cephalothorax
  13. What makes up the class dilopoda?
  14. What is the main identifying characteristics of dilopoda?
    Two pairs lof legs per body segement
  15. What makes up Chilopoda and what is the main identifying characteristic?
    Centipedes, one pair of legs per body segment
  16. What makes up the class Crustacea?
    crabs, crawfish, pillbugs
  17. What are two main characteristics of the class Crustacea?
    two pair of antennae and ametamorphic
  18. In the class insecta what are the main identifying chracteristics?
    • Three body segments
    • Appendages - antenaae, legs, wings
  19. What are the main Insect ORDERS?
    • Odonata: Dragonflies and damselflies
    • Phasmida: Walking sticks
    • Orthoptera: Grasshoppers, Crickets
    • Mantodea: Preying Mantis
    • Blattaria: Cockroaches
    • Isoptera: Termites
  20. What are the main differences between termites and ants?
    • Termites; winged or wingless, antennae bead-like, thorax and abdomen broadly joined
    • Ants; winged or wingless, antennae elbowed, noticable restriction between body segements
  21. Define parasitism
    An association between two organisms in which the parasite benefits while the host suffers some degree of harm
  22. What is an ectoparasite?
    live on outer suface of host, infestation
  23. Whatis an endoparasite?
    Lives inside the host, infection
  24. What is a obligate parasite?
    A parasite unable to live without the host
  25. WHat is a faculTative parasite?
    A parasite that can live and reproduce without a hosT
  26. Define a disease.
    A condition of living organism that impairs normal function
  27. What is Acariasis?
    invasion by mites
  28. What is myiasis?
    Invasion by fly maggots
  29. What is a hematophagus?
    blood feeder
  30. What is termed Urtication?
    venom secreting hairs
  31. What is an antigen?
    substance capable of elicting the formation of antibodies
  32. What are allergens?
    An antigen that has the potential of evoking a hypersensitive reaction in certain individuals
  33. What are protozoa?
    single celled organism with a well defined nucleus
  34. What are some different groups of etiologial agent, or organisms that cause diseases that are transmitted by insects?
    Fungi, Bacteria, Metazoa, Rickettsia
  35. What is Rickettsia?
    genus of bacteria, obligate intercellualr parasite
  36. Why is it called an arbovirus?
    • Ar: Arthropod
    • Bo: Borne
  37. What is the difference between mechanical disease transmission and biological?
    In mechanical transmission the virus/disease cannot replicate inside the host, however in biological transmission it can.
  38. What is epidemiology?
    branch of medicine that deals with epidemic outbreaks
  39. What is an Enzootic disease?
    Disease in animals at a more or less constant level
  40. What is an Epizootic disease?
    Disease at unusually high levels in animals
  41. What is an endemic disease?
    Disease in humans that more or less constant levels
  42. What is an epidemic disease?
    Disease at unusually high levels in humans
  43. What is a pandemic disease?
    Diseases that occur across countries or even continents
  44. What is a 1-factor disease?
    Generally genetic disorders, involves noly the host
  45. What is a 2-factor disease?
    Host and pathogen
  46. What is a 3-factor disease?
    Host, pathogen, vector
  47. What is a 4-factor disease?
    Host A, Host B, vector, pathogen
  48. What is the scientific name of the black widow?
    Latrodectus mactans
  49. What are some general characteristics of the black widow?
    glossy black, covered in dense short hair, on ventral ide- usually red hourglass shape
  50. What is the scientific name of the brown recluse?
    Loxosceles reclusa
  51. What is the difference between black widow and brown recluse toxin?
    • Black widow- neurotoxin
    • Brown recluse - necrotic
  52. What is the tilson?
    End stinger on a scorpion
  53. What is a suseptible host for fleas?
  54. What is a resevoir host for fleas?
    rats - think plauge
  55. What are some main identification factors in fleas?
    Laterally compressed, wingless, legs adapted for jumping
  56. What do fleas eat?
  57. Do fleas have complete metamorphosis?
    • yes
    • egg, larvae, pupae, adult
  58. When did the black death occur?
    14th century
  59. When did the great plague of england occur?
  60. When did the plague become prevalent in the US
  61. What is the pathogen of the plague called?
    Yerosinia pestis
  62. What are the three forms of plague?
    • Bubonic plague- swelling filled with bacteria
    • pnemonic plague - infection localized in lungs¬†
    • septicemic plague -massive blood posioning
  63. What is the pathogen of typhus?
    Rickettsia thyphi
  64. What is the scientific name of dog tapeworms?
    Dipylidium canium