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 (B)</p> Signup and view all the answers

What provides support and coordination in movement for chordates?

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

Which evolutionary adaptation is unique to cephalopods like squids?

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

How do echinoderms reproduce?

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

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

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

Which of the following is a characteristic of chordates?

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

What is the function of pharyngeal slits in some vertebrates?

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

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

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

How do amphibians obtain oxygen?

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

Which evolutionary adaptation allowed vertebrates to conquer land?

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

What is the purpose of the vertebral column in vertebrates?

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

What is a key characteristic of amphibians' reproduction?

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

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

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

How do echinoderms interact with their environment?

<p>Providing habitats for other organisms (A)</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 (D)</p> Signup and view all the answers

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