Sustainable Sponge Farming Quiz
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Questions and Answers

What term is used to describe the digestive system of cnidarians with only one opening serving as both mouth and anus?

  • Bilateral symmetry
  • Incomplete digestive system (correct)
  • Radial symmetry
  • Complete digestive system
  • What is the main function of the non-living mesoglea in cnidarians?

  • Nutrient absorption
  • Support and structure (correct)
  • Oxygen transport
  • Digestive enzyme production
  • How do cnidarians eliminate nitrogenous waste from their bodies?

  • By secreting it into the gastrovascular cavity
  • By excretion through a separate organ system
  • Diffusion into the water outside the animal or into the gastrovascular cavity (correct)
  • Through specialized cells called cnidocytes
  • What is the primary mechanism for nutrient transportation between cells in cnidarians?

    <p>Diffusion through mesoglea</p> Signup and view all the answers

    Which term best describes the body arrangement of cnidarians around a central point, exhibiting consistent and repeating patterns?

    <p>Radial symmetry</p> Signup and view all the answers

    What are the specialized cells in cnidarians responsible for defense and prey capture?

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

    What is the function of choanocytes in a sponge?

    <p>To generate water current and trap food particles</p> Signup and view all the answers

    What is the function of the osculum in a sponge?

    <p>To allow water to exit the sponge</p> Signup and view all the answers

    What is the function of the ostium in a sponge?

    <p>To allow water to enter the sponge</p> Signup and view all the answers

    What is the role of amoebocytes in a sponge?

    <p>To deliver nutrients, form eggs, deliver sperm, and differentiate cells</p> Signup and view all the answers

    What is the function of spicules in a sponge?

    <p>To provide structural support</p> Signup and view all the answers

    What is the function of the spongocoel in a sponge?

    <p>To act as a central cavity within the body of some sponges</p> Signup and view all the answers

    Which class does the Manila clam belong to?

    <p>Class Bivalvia</p> Signup and view all the answers

    What type of shell is commonly found in garden snails?

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

    Which of the following animals belongs to Class Gastropoda?

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

    Which of the following is a common name for animals in the family Haliotidae?

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

    What is the function of the flexible ligament in Class Bivalvia?

    <p>To form the hinge</p> Signup and view all the answers

    Which of the following is not a common name for animals in the family Haliotidae?

    <p>Sea cucumbers</p> Signup and view all the answers

    Which class of animals includes species that remain polypoid throughout their lives?

    <p>Class Anthozoa</p> Signup and view all the answers

    Which class of animals has the medusa as the prominent stage in the life cycle?

    <p>Class Scyphozoa</p> Signup and view all the answers

    Which of the following is a characteristic feature of Scyphozoans?

    <p>Lack of calcareous skeleton</p> Signup and view all the answers

    Which of the following corals is NOT a soft coral species?

    <p>Brain coral (Diploria labyrinthiformis)</p> Signup and view all the answers

    Which of the following jellyfish species is NOT a member of the class Scyphozoa?

    <p>Portuguese man o' war (Physalia physalis)</p> Signup and view all the answers

    Which of the following is NOT a method of reproduction for Anthozoans?

    <p>Binary fission</p> Signup and view all the answers

    What type of symmetry is best described as one half of an organism being a mirror image of the other half?

    <p>Bilateral symmetry</p> Signup and view all the answers

    Which of the following is not a characteristic of Cnidarians?

    <p>Presence of mesoderm</p> Signup and view all the answers

    What is the process called where a cell incorporates a particle by extending pseudopodia and drawing the particle into a vacuole of its cytoplasm?

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

    What is the function of cnidocytes in Cnidarians?

    <p>Immobilization of prey</p> Signup and view all the answers

    What is the term for an organism that has two sides or halves that are different in shape, size, or style?

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

    Which of the following is not a common example of an animal with radial symmetry?

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

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