Animals 2

The flashcards below were created by user Anonymous on FreezingBlue Flashcards.

  1. What Phylum does sea lilies, sea stars, brittle stars, sea urchins, sand dollars, sea cucumbers belong to?
  2. What Phylum do lancelets and tunicates belong to?
  3. Phylum Chordata is made up of the Subphylums _________ and _______?
    Urochordata; Cephalochordata
  4. In Echinoderms they are ___blastic, _____mate, blastopore becomes ___?
    Triploblastic, Coelomate, anus
  5. Fossils suggest that the ancestral deuterstomes had _______ symmetry, _________, and ____?
    Bilateral, Segmentation, Gills
  6. _______ are aquatic, worm like bottom dwellers, most are sessile, contain a coelomate, complete gut?
  7. Echinodermatas have ___________ radial symmetry? ________ derived (re-evolved)?
    Pentamerous; Secondarily
  8. Larval stages of Echinodermata are often ________ symmetry?
  9. Digestive system of and Echinodermata: 
    Mouth on ____ side?
    anus on ____ side?
    ____ stomach?
    _______ ____ in arms?
    Ventral; dorsal; pyloric ceca
  10. Nervous System in Echinodermata:
    No ___ or ____?
    Few specialized _____ organs?
    head or brain; sensory
  11. Echinodermata have _____ sexes and the larvae are ____-____?
    separate; free-floating
  12. Sea lilies have __ arms with many branches, no ____, no _____________ and are _______ feeders?
    5; no spines; no pedicellariae; sessile filter feeders
  13. What are Pedicellariae?
    Pincher-like organs that keep parasites and other animals off epidermis
  14. Sea Stars have an ____skeleton made of _________ plates and ____ on surface? And _______ groove on ventral side of arms?
    Endoskeleton; calcareous; spines; ambulacral
  15. Sea stars have a ______ ______ system?
    Water Vascular System
  16. Sea stars are ______? and can ____ their stomach to eat prey?
    Predators; evert
  17. Brittle stars are the _____ group of echinodermata, ____ tube feet, arms composed of ____ plates, they are _____, Browsers or ____ feeders?
    largest; no tube feet; jointed hard plates; secretive; suspension feeders
  18. Sea urchins (hedgehog) have an ____skeleton, no ___, ____ feet, have long ____ for ___________?
    Endoskeleton; no arms; tube feet; long spines for locomotion.
  19. _______ _______ is a unique chewing device in sea urchins?
    Aristotle's Lantern
  20. Sea cucumbers defense mechanisms is the explosion of _____ and evisceration of ______ ____ and ____?
    tubules; digestive track and gonads
  21. Sea cucumbers have no centralization of organs=____________?
  22. Phylum Chordata has ______stome development, is ____blastic, has a _____mate, ______ symmetry? Have segmented muscles=_____________? Have an area of centralized organs=_________?
    Deuterostome, triploblastic, Coelomate, Bilateral symmetry, Metamerization, Cephalization.
  23. Phylum Chordata has complete ______(food), ______(sensory), and ______ (heart) systems?
    Digestive, nervous and circulatory
  24. What are the four key features of Chordata?
    • 1. Notochord
    • 2. Dorsal hollow nerve cord
    • 3. Pharyngeal pouches of slits¬†
    • 4. Post-anal tail
  25. What is the Notochord? What is its function?
    • 1. Stiff rod of fluid filled cells enclosed in a sheath running the axis of the body
    • 2. Provided skeletal support
  26. What is the Pharynx? What is its function?
    • 1. part of the digestive track behind the mouth
    • 2. Functions in filter feeding or gas exchange.
  27. Which DOES belong to the Phylum Chordata, Hemichordate or Urochordate?
  28. What do the Pharyngeal pouches or slits become?
    Gill slits
  29. What does the Hollow Dorsal Nerve cord become in humans?
  30. Lancelets belong to what subphylum?
  31. Tunicate and sea squirts belong to what subphylum?
  32. Tunicates are _____ (movement) marine organisms as adults , their sex is ______________, ____ feeders, contain all ____ features?
    Sessile; Hermaphorditic; filter feeders; all four
Card Set:
Animals 2
2014-04-08 01:53:21
Echinodermata Chordata
Animal Tax
Animal Taxonomy
Show Answers: