Mollusks and Arthropods: Unique Adaptations
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Questions and Answers

What is the unique hydraulic system found in echinoderms used for?

  • Reproduction
  • Communication
  • Respiration
  • Feeding (correct)
  • Which organ do mollusks like snails use for feeding on algae or scraping surfaces?

  • Radula (correct)
  • Tracheal System
  • Exoskeleton
  • Jet Propulsion
  • What evolutionary adaptation do arthropods like insects have that enables efficient gas exchange?

  • Tracheal System (correct)
  • Water Vascular System
  • Jet Propulsion
  • External Skeleton
  • What structures in echinoderms allow them to move and manipulate objects, as well as capture prey?

    <p>Tube Feet</p> Signup and view all the answers

    What provides support and coordination in movement for chordates?

    <p>Notochord and Dorsal Nerve Cord</p> Signup and view all the answers

    Which evolutionary adaptation is unique to cephalopods like squids?

    <p>Jet Propulsion</p> Signup and view all the answers

    How do echinoderms reproduce?

    <p>By external fertilization in the water</p> Signup and view all the answers

    Which adaptation allows amphibians to exploit both aquatic and terrestrial habitats?

    <p>Moist Skin</p> Signup and view all the answers

    Which of the following is a characteristic of chordates?

    <p>Dorsal nerve cord</p> Signup and view all the answers

    What is the function of pharyngeal slits in some vertebrates?

    <p>Filter feeding</p> Signup and view all the answers

    Which structure aids in propulsion and balance during swimming in aquatic species?

    <p>Post-anal Tail</p> Signup and view all the answers

    How do amphibians obtain oxygen?

    <p>Through diffusion across their skin</p> Signup and view all the answers

    Which evolutionary adaptation allowed vertebrates to conquer land?

    <p>Evolution of lungs</p> Signup and view all the answers

    What is the purpose of the vertebral column in vertebrates?

    <p>Support and protect the spinal cord</p> Signup and view all the answers

    What is a key characteristic of amphibians' reproduction?

    <p>External fertilization in water</p> Signup and view all the answers

    Which evolutionary adaptation allows fishes to control their position in the water column?

    <p>Buoyancy Control</p> Signup and view all the answers

    How do echinoderms interact with their environment?

    <p>Providing habitats for other organisms</p> Signup and view all the answers

    Why is endothermy advantageous for many vertebrates?

    <p>Enable maintenance of activity in a wide range of environments</p> Signup and view all the answers

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