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5 Written Questions

5 Matching Questions

  1. respiration and circulation
  2. anthozoa
  3. endothermic
  4. uterus
  5. placentals
  1. a -able to maintain a constant body temp independent of their environment
    -temperature regulation:
    1.hair (fur)-evolved from scales and is made of keratin; provides insulation and waterproofing
    2.panting- increases respiratory heat loss& cools of anminal
    3. sweat glands- a form of evaporative cooling
  2. b mammals that carry young inside the uterus until development is almost complete
  3. c hollow muscular-organ in which offspring develop
    -survival advantage
  4. d -mammals need a lot of energy for heating, cooling, & locomotion
    -thus, large amounts of O2 are needed
    -Diaphragm
    -Four-chambered heart
  5. e -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

5 Multiple Choice Questions

  1. -the time during which placental mammals develop inside uterus
    - mice 21 days, rhino 19 months, human 38 weeks
  2. -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
  3. -stomach-footed
    -most have a single shell (snails, conches, whelks, periwinkles, etc); slugs(protected by mucus) and nudibranchs(bright-colored) do not
    -shelled gastropods nay be herbivores, predators, or parasites
    -nudibranchs that feed on jellyfish incorporate the poisonous nematocysts into their own tissues
  4. -most mollusks have seperate sexes and reproduce sexually
    -fertilization is usually external
    -many land gastropods are hermaphroditic with internal fertilization
    -on evolutionary adaptation that increases likelihood of fertilization
    -larval stages of all mollusks are similar
  5. a mutualistic symbiotic relationship with photosynthetic, single-celled protists
    -produce oxygen/ food

5 True/False Questions

  1. diaphragm-live in colonies of polyps usually in warm waters
    -secrete calcium carbonate (limestone) around soft bodies for protection-may eventually build coral reefs (hard corals)
    -zooxanthellae

          

  2. coeluma fluid-filled body cavity

          

  3. therapsids-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"

          

  4. bivalves-live in colonies of polyps usually in warm waters
    -secrete calcium carbonate (limestone) around soft bodies for protection-may eventually build coral reefs (hard corals)
    -zooxanthellae

          

  5. sexual reproduction in cnidarians-may occur in either polyp or medusa stage
    -polyps reproduce asexually in a process known as budding

          

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