Animal Kingdom

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Author:
blondie0414
ID:
288590
Filename:
Animal Kingdom
Updated:
2014-11-08 17:07:12
Tags:
biol
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Description:
biol 122L animal kingdom
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  1. Invertebrates
    • Porifera
    • Cnidaria
    • Platyhelminthes
    • Nematoda
    • Annelida
    • Mollusca
    • Arthropoda
    • Echinodermate
    • Chordata: Urochordata, Cephalochordata
  2. Vertebrates
    • Agnatha
    • Chondrichthyes
    • Osteichthyes
    • Amphibia
    • Reptilia
    • Aves
    • Mammalia
  3. Subphylum and class of chordates
    • Chordates: Urochordata, Cephalochordata, Vertebrata
    • Vertebrata: Agnatha,¬†Chondrichthyes, Osteichthyes, Amphibia, Reptilia, Aves, Mammalia
  4. symmetry
    • none: Porifera
    • radial: Cnidaria
  5. Body temp
    endotherms: aves, mammalia

    the rest are ectotherms
  6. Phylums with asexual reproduction
    • Porifera
    • Cnidaria
    • Platyhelminthes

    the rest have sexual
  7. Circulatory Systems
    none: Porifera, Cnidaria, Platyhelminthes, Nematoda

    open: arthropoda

    the rest have closed
  8. more than 90% of the different species of animals are
    invertebrates
  9. Porifera
    sponges

    primitive multicellular aquatic animals

    most species marine, with a few freshwater forms

    incurrent pores: lead into a central gastral cavity

    collar cells: keep water moving into central cavity

    osculum: large circular opening

    spicules: form the skeleton to strengthen the body ...chalk, glass, fibrous
  10. Cnidaria
    Jellyfish, sea anemones, corals, and hydroids

    mostly marine, few freshwater

    radial symmetry

    some members exhibit alternation of generations with polyp: asexually reproducing , or medusa: sexually reproducing

    have tentacles, a gastrovascular cavity, and nematocysts

    outer epidermis, inner gastrodermis, jellylike layer between called mesoglea.
  11. Platyhelminthes
    Flatworms: planaria, flukes, tapeworms

    planaria: nonparasitic freshwater flatworm commonly found under rocks and debris

    eyespots, gastrovascular cavity
  12. Nematoda
    Roundworms: ascaris

    • intestinal parasites
    • complete digestive tract
  13. Annelida
    Segmented worms: earthworms, sandworms, leeches

    numerous ringlike segments, five pairs of hearts
  14. mollusca
    mollusks: chitons, tooth shells, snails and slugs, clams and oysters, octopi and squid

    few terrestrial, most aquatic

    muscular foot (tongue used for movement)
  15. Arthropoda
    crayfish, shirmps, and crabs, insects, centipedes, millipedes,, spiders, scopions, ticks, and mites, horseshoe crabs

    • segmented body: head, thorax, and abdomen
    • compound eyes
    • antenna
    • mouth parts

    serial homology - although the appendages show a great variety of modifications for various purposes they all have arisen from one basic type of appendage.
  16. Echinoderms
    starfish

    entirely marine

    • spiny skin
    • endoskeleton
  17. Chordata
    dorsal hollow nerve cord, notochord, pharyngeal gill slits

    3 subphyla: urochordates, cephalochordates, and vertebrates
  18. urochordata
    pharyngeal gill slits are the only chordate features present in the adults of this group

    larvae resembles a tadpole

    sea squirts
  19. cephalochordata
    amphioxus

    capable of swimming, yet usually found in the sand with only the anterior end exposed
  20. vertebrata
    notochord is replaced by a cartilaginous or bony vertebral column
  21. agnatha
    without a jaw

    lampreys and hagfish

    absence of jaw, skin lacking scales, seven gill slits behind each eye, continuous median fin
  22. condrichthyes
    cartilage fish

    sharks, skates, rays

    nerve endings that detect water vibrations
  23. osteichthyes
    bony fish

    perch
  24. amphibia
    deposit their eggs in ponds and streams

    larva hatches with functional gills, replaced by lungs in adults
  25. reptilia
    internal fertilization

    leathery shelled, evaporation resistant egg

    scales are important for reducing evaporative water loss from the body
  26. aves
    birds

    lay shelled eggs, incubated by body heat

    light weight feathers, hollow bones and forelimbs modified into wings
  27. mammalia
    presence of hair and mammary glands is distinguishes

    endothermic

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