Chapter 33/34

  1. asymmetry
    no shape, ex.amoeba
  2. spherical symmetry
    circular, ex. volvox
  3. radial symmetry
    tube/bell shaped body
  4. bilateral symmetry
    • 2 sided shape
    • can only be cut one way to get equal halves
  5. dorsal
    upper surface
  6. ventral
    lower surface
  7. protosomes
    worms, anthropods, clams
  8. deuterosomes
    vertebrates, starfish
  9. ectoderm
    skin and nervous system
  10. mesoderm
  11. endoderm
    digestive system lining
  12. 2 kinds of skeletons secreted by sponges
    • spicule
    • spongin
  13. spicule
    calcium carbonate or silicon compounds
  14. spongin
    protein fibers, soft and flexible
  15. 2 cell layers of sponges
    • ectoderm-forms into epidermis
    • endoderm-made of collar cells
  16. mesenchyme
    • middle jelly layer of a sponge
    • holds layers together
  17. gemmule
    cells in a hard coat, dormant stage of sponge
  18. 2 cell layers of Cnidarians
    • endoderm
    • epidermis
  19. mesoglea
    jelly layer of Cnidarians
  20. nerve net
    • Cnidarians
    • located in mesoglea
    • "brain"
  21. nematocysts
    stinging cells
  22. basal disk
    attaches hydra to places
  23. How to Cnidarians get food?
    • they capture them in their tentacles
    • plankton get paralyzed
  24. polyp
    tube like body in the Cnidarians
  25. gastrovascular cavity
    tube like stomach
  26. endoderm in Cnidarians
    secretes enzymes for digestion
  27. digestion in Cnidarians
    goes back up the mouth
  28. oral lips
    giant lips of Aurelia
  29. planula
    larva of a jelly fish
  30. ephyra
    baby medusas
  31. marginal reefs
    • close to shore-few miles
    • ex. ones in Caribbean
  32. barrier reefs
    • far from shore-40-50 miles
    • ex. Great Barrier reef
  33. atoll reefs
    • small island
    • ex. bikini atolls
    • made from reefs that have come above water when water levels fluctuated
    • in south Pacific
  34. cephalization
    concentration of nerve cells in anterior end of an animal
  35. eyespots
    detect light
  36. pharynx
    tube like vacuum on ventral side that sucks up food
  37. genital pore
    opening into both systems
  38. What neg. responses does a planarian have?
  39. flame cells
    • ciliated
    • collect poisonous liquid nitrogen wastes
  40. excretory ducts
    carry waste towards excretory pores in skin
  41. ovaries
    make eggs
  42. oviducts
    carry eggs away from ovaries
  43. yolk glands
    • produce yolk
    • characteristic of egg laying animals
    • yolk is food supply for embryo
  44. vagina
    passageway into female reprod. system
  45. seminal receptacles
    • holds sperm from another worm
    • storage sack for sperm
    • char. of invertebrates
  46. testes
    makes sperm
  47. vas efferens
    tiny tubes that carry sperm from testes
  48. vas deferens
    large tubes that carry sperm from testes
  49. seminal vesicle
    stores sperm from worm, worm where it is made
  50. atrium
    "hallway" passageway to male and female reproductive system
  51. number of eggs that planarians lay at once?
  52. acoelomate
    organism with no body cavity
  53. 3 acoelomate phylums
    • porifera-2 cell layers
    • coelenterata-2 cell layers
    • platyhelminthes-3 cell layers
  54. Where do blood flukes live?
    tropical and subtropical environments
  55. hooks and suckers of tapeworm
    attach worm to small intestine
  56. cuticle of a tapeworm
    secreted body covering for protection against host immune system
  57. tegument
    thickened cell membrane around skin cells
  58. proglottid
    contains reproductive system
  59. uterus
    sack for storing eggs
  60. symptom of hookworms
    • anemia
    • loss of RBC
    • tired,weak
    • bloody diarrhea
    • makes you susceptible to other diseases
  61. where does trichinosis occur?
    • skeletal muscles
    • diaphragm
    • heart
    • can be fatal for humans
  62. mastax
    grinding organ in digestive system
  63. degeneration
    loss of systems in parasites in comparison to their free living relatives
  64. hydrotheca
    • feeding polyp
    • tentacles have nematocysts
  65. gonotheca
    • reprod. polyp
    • asexual budding
  66. gonad
    ovaries or testes on medusa
  67. polyp stage of obelia
    • lives in bottom of ocean
    • how obelia spends most of its life
  68. medusa
    • uses jet propulsion
    • free swimming
    • sexual stage of obelia
  69. jet propulsion
    take water in mouth and shoot put water to move
  70. collar cells
    create water current to make whirlpool to bring in food
  71. filter feeding
    • when animals filter and eat plankton
    • ex. sponge
  72. osculum
    • excurrent pore
    • water goes out
  73. ostia
    • incurrent pore
    • water goes in
  74. amoebocyte
    carries food from collar cells to epidermis
Card Set
Chapter 33/34
Kingdom animalia :)