Marine Mammal Sensory Systems Quiz
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Marine Mammal Sensory Systems Quiz

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Questions and Answers

What is the function of the sensory systems mentioned in the text?

  • To sense the environment and other animals’ behaviour in order to make appropriate decisions (correct)
  • To control voluntary muscle movements
  • To produce hormones for growth and development
  • To regulate body temperature and metabolism

    • What is the main purpose of vision for river dolphins according to the text?

  • Long-distance navigation
  • Detecting changes in water temperature
  • Identifying different species of fish
  • Close range activities like hunting and social interactions (correct)

    • What is the role of the pad under the eye of dolphins and pinnipeds?

  • Secrete oil to protect from saltwater (correct)
  • Aid in buoyancy control
  • Regulate body temperature
  • Enhance echolocation abilities

    • Why do river dolphins have small eyes according to the text?

    <p>Visibility may be limited and eyes are used for close range activities</p> Signup and view all the answers

    What type of cells in the retina are responsible for low-light and black-and-white vision?

    <p>Rods</p> Signup and view all the answers

    Which marine mammals have lost their S-cones and rely on rods for vision?

    <p>Cetaceans and pinnipeds</p> Signup and view all the answers

    Which mammals are dichromats with L-cones for red to green and S-cones for blue to UV?

    <p>Most terrestrial mammals</p> Signup and view all the answers

    Which adaptation allows some mammals to see better in low-light conditions?

    <p>Reflective layer behind the retina (tapetum lucidum)</p> Signup and view all the answers

    Which sensory adaptation is used for close range interactions in marine mammals?

    <p>Vibrissae</p> Signup and view all the answers

    Which mammals are monochromats with no S-cones?

    <p>Some nocturnal mammals</p> Signup and view all the answers

    Which type of mammals have a reflective layer behind the retina for low-light adaptation?

    <p>Marine mammals</p> Signup and view all the answers

    Which adaptation allows some marine mammals to maintain hearing underwater?

    <p>Conduction of sound through lower jaw</p> Signup and view all the answers

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