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5 Written questions

5 Matching questions

  1. platypus
  2. diaphragm
  3. circulatory system
  4. coelum
  5. gastrovascular activity
  1. a -two or three-chambered heart
    -most have an open circulatory system(blood flows in open space); some, such as the octopus have a closed circulatory system(blood flows only in vessels)
  2. b sheet of muscle seperating expands and contrasts the chest cavity
  3. c where prey are digested
  4. d a fluid-filled body cavity
  5. e -has a rubbery snout, webbed front feet, sharp claws for digging & burrowing in soil

5 Multiple choice questions

  1. -the time during which placental mammals develop inside uterus
    - mice 21 days, rhino 19 months, human 38 weeks
  2. -mammals in which young have short period of development within uterus, followed by a second period of development within a pouch on outside of mother's body
    -mostly in Australia
  3. -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
  4. occurs only in one phase of the life cycle, usually the medusa stage (unless there is no medusa stage)
  5. tongue-like organ with rows of teeth that is used to drill, scrape, grate or cut food
    (ex) snails, octopuses

5 True/False questions

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

          

  2. cephalopods-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

          

  3. scyphozoa-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

          

  4. zooxanthellae-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. respiratory system-most mollusks have gills-rich supply of blood/exchange of gases; land snails and slugs have primitive lungs

          

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