Endocrine Glands and Hormones Quiz
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Questions and Answers

Which type of glands are called ductless glands?

  • Exocrine glands
  • Salivary glands
  • Endocrine glands (correct)
  • Sweat glands

    • What is the current scientific definition of hormones?

  • Non-nutrient chemicals that act as intercellular messengers and are produced in trace amounts (correct)
  • Chemicals produced by exocrine glands
  • Chemicals released into the blood and transported to nearby target organs
  • Nutrient chemicals

    • In which organisms do invertebrates possess very simple endocrine systems?

  • Plants
  • Humans
  • Invertebrates (correct)
  • Birds

    • What do hormones act as in the body?

    <p>Intercellular messengers</p> Signup and view all the answers

    What is the main function of the human endocrine system?

    <p>Providing coordination through hormone secretion</p> Signup and view all the answers

    Which type of glands lack ducts and are called ductless glands?

    <p>Endocrine glands</p> Signup and view all the answers

    What are the secretions of endocrine glands called?

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

    According to the classical definition, how are hormones transported to their target organs?

    <p>Through the blood</p> Signup and view all the answers

    What is the current scientific definition of hormones?

    <p>Intercellular messengers</p> Signup and view all the answers

    Do invertebrates possess simple or complex endocrine systems?

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

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