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5 Written Questions

5 Matching Questions

  1. cubozoa
  2. excretory system
  3. asexual reproduction
  4. Polyp
  5. diaphragm
  1. a nephridia- organs that remove metabolic wastes
  2. b -may occur in either polyp or medusa stage
    -polyps reproduce asexually in a process known as budding
  3. c sheet of muscle seperating expands and contrasts the chest cavity
  4. d -box jellies
    -square-shaped
    -have eyes
    -deadliest stinging organism on Earth= Sea Wasp
  5. e tube-shaped body and a mouth surrounded by tentacles.
    -only stage in hydras, corals (always colonial), and anemones (singular)

5 Multiple Choice Questions

  1. -reptiles with features of both reptiles & mammals
    -lower jaw & ear bones like reptiles
    -straight legs close to body like mammals
    -270-180 mya
    -Cenozoic Era: the "golden age of mammals"
  2. -mammals need a lot of energy for heating, cooling, & locomotion
    -thus, large amounts of O2 are needed
    -Diaphragm
    -Four-chambered heart
  3. -head-footed mollusks
    -all are marine
    -includes squid, octopus, cuttlefish, and chambered nautilus
    -like bivalves, have siphons that expel water--jet propulsion
    -have tentacles for capturing prey, beak-like jaws, radula
  4. -organ that provides food and O2 to and removes waste from developing fetus
    -disadvantage: fiddle alcohol syndrome
    *use of alcohol when pregnant can lead to permanent mental/physical problems
  5. -nerves and cerebral ganglia or a brain
    -most mollusks have paired eyes

5 True/False Questions

  1. mantle-a thin membrane surrounding the internal organs that secretes the shell

          

  2. radulatongue-like organ with rows of teeth that is used to drill, scrape, grate or cut food
    (ex) snails, octopuses

          

  3. coeluma fluid-filled body cavity

          

  4. Medusaumbrella-shaped body w/ tentacles hanging down
    -mobile

          

  5. anthozoa-the corals and anemones
    -exhibit only the polyp body form
    -sea anemones live individually and may live for 100s of years
    -some tropical anemones may have a diameter greater than 1m

          

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