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Ninth Grade (Grade 9) Zoology Questions

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Grade 9 Zoology
Which adaptation is NOT found in reptiles such as snakes?
  1. scaly skin
  2. amniotic egg
  3. gills
  4. lungs
Grade 9 Zoology
When it is hot during the day in the desert, many lizards will burrow underground to keep themselves cool. This serves as an example of a
  1. physiological adaptation.
  2. structural adaptation.
  3. mental adaptation.
  4. behavioral adaptation.
Grade 9 Zoology
Fish have a specific shape that enables them to move more quickly in water. This serves as an example of a
  1. mental adaptation.
  2. behavioral adaptation.
  3. physiological adaptation.
  4. structural adaptation.
Grade 9 Zoology
Sexual reproduction occurs in
  1. fish.
  2. amphibians.
  3. mammals.
  4. all of the above.
Grade 9 Zoology
What type of symmetry does a starfish exhibit?
  1. bilateral symmetry
  2. radial symmetry
  3. no symmetry
  4. spherical symmetry
Grade 9 Zoology
Grade 9 Zoology
The appendages of arthropods are
  1. found only on the head.
  2. hard and immovable.
  3. jointed and extend from the body wall.
  4. divided into six branches.
Grade 9 Zoology
Grade 9 Zoology
There are two main types of thermoregulatory organisms: endotherms and ectotherms. What is the difference between the two?
  1. Endotherms change their body temperature internally by their metabolism, whereas ectotherms maintain their body heat by absorbing it from the environment.
  2. Ectotherms change their body temperature internally by their metabolism, whereas endotherms maintain their body heat by absorbing it from the environment.
  3. Both endotherms and ectotherms regulate their body heat internally, though they do so using different biological mechanisms.
  4. Both endotherms and ectotherms regulate their body heat by absorbing heat from the environment, though they do so using different biological mechanisms.
Grade 9 Zoology
Which characteristic does not occur in mammals?
  1. mammary glands
  2. hair
  3. endothermy
  4. three-chambered heart
Grade 9 Zoology
A cnidarian's inner layer of tissue is specialized for
  1. reproduction.
  2. capturing prey.
  3. digestion.
  4. all of the above.
Grade 9 Zoology
Grade 9 Zoology
Grade 9 Zoology
All fish in the class Chondrichthyes are alike in the
  1. food they eat.
  2. size and form of their teeth.
  3. shape of their bodies.
  4. composition of their skeletons.
Grade 9 Zoology
Which structure is NOT found in all chordates?
  1. hollow nerve cords
  2. pharyngeal pouches
  3. fins
  4. notochords
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