Biology: Taxonomy and Classification
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Questions and Answers

What happens when humans ingest the embryonated eggs?

  • They are broken down into nutrients for the body.
  • They are immediately excreted from the body.
  • They are stored in the stomach for later use.
  • They start to hatch in the human small intestine and multiply. (correct)
  • What is unique about the body structure of annelids?

  • They are always hermaphrodites.
  • They have a hard shell that protects them.
  • They have true segmentation of their bodies. (correct)
  • They have no internal organs.
  • What is the characteristic of flatworms that replaces their circulatory system?

  • A highly developed nervous system.
  • A unique respiratory system.
  • A complex digestive system.
  • A system of diffusion for oxygen and nutrients. (correct)
  • What is the phylum Mollusca characterized by?

    <p>The presence of a hard exoskeleton.</p> Signup and view all the answers

    Which phylum is the second-largest animal phylum?

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

    What is the function of the intestinal microflora in humans who have ingested embryonated eggs?

    <p>To provide a habitat for the hatching eggs.</p> Signup and view all the answers

    What is the term for having both male and female reproductive organs?

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

    What is the meaning of the Latin word 'annelus'?

    <p>Little rings</p> Signup and view all the answers

    What is the characteristic of Platyhelminthes that allows them to obtain oxygen and nutrients?

    <p>A system of diffusion.</p> Signup and view all the answers

    What is the term for the hard outer covering of some mollusks?

    <p>Calciferous shell</p> Signup and view all the answers

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