External Features of a Spindle-like Organism
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Questions and Answers

What is the key difference between the lateral line sense organs in the text?

  • The lateral line sense organs are present and well-developed in one case, but absent except in a few larval stages in the other. (correct)
  • The lateral line sense organs are undeveloped in one case, but usually present in the other.
  • The lateral line sense organs are external in one case, but middle ear in the other.
  • The lateral line sense organs are internal in one case, but external in the other.

    • What is the difference between the external and middle ear structures described in the text?

  • The external and middle ear are lateral line sense organs in one case, but not in the other.
  • The external and middle ear are internal in one case, but external in the other.
  • The external and middle ear are present in one case, but absent in the other.
  • The external and middle ear are undeveloped in one case, but usually present in the other. (correct)

    • Which statement best summarizes the key difference between the two cases described in the text?

  • In one case, the lateral line sense organs are present and well-developed, while the external and middle ear are also present. In the other case, the lateral line sense organs are absent, and the external and middle ear are undeveloped.
  • In one case, the lateral line sense organs are internal, while the external and middle ear are undeveloped. In the other case, the lateral line sense organs are external, while the external and middle ear are usually present.
  • In one case, the lateral line sense organs are present and well-developed, while the external and middle ear are undeveloped. In the other case, the lateral line sense organs are absent except in a few larval stages, while the external and middle ear are usually present. (correct)
  • In one case, the lateral line sense organs are external, while the external and middle ear are internal. In the other case, the lateral line sense organs are middle ear, while the external and middle ear are external.

    • Which of the following is the most accurate way to describe the difference in the lateral line sense organs between the two cases?

    <p>In one case, the lateral line sense organs are present and well-developed, while in the other case they are absent except in a few larval stages.</p> Signup and view all the answers

    Based on the information provided in the text, which of the following statements is true?

    <p>The external and middle ear are sometimes present and sometimes undeveloped.</p> Signup and view all the answers

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