Thermoregulation in Animals: Ectotherm vs Endotherm
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Questions and Answers

What happens in brown adipose tissues in some hibernating mammals and human babies?

  • Subcutaneous fat develops
  • Fur thickness increases
  • Hibernation occurs
  • Metabolic heat production increases (correct)

    • Why do smaller mammals like squirrels not have thick fur?

  • To move quickly
  • To stay cool in the summer
  • Because it impedes their movement (correct)
  • To conserve energy

    • What do some animals like penguins and honeybees do to keep warm?

  • Huddle together (correct)
  • Migrate to warmer climates
  • Increase their metabolic rates
  • Develop thick fur

    • What is special about the hairs of bumblebees?

    <p>They act as insulation</p> Signup and view all the answers

    What is the difference between endotherms and ectotherms in terms of heat production?

    <p>Endotherms produce more metabolic heat</p> Signup and view all the answers

    What do grasshoppers do to warm their body?

    <p>They bask in the sun</p> Signup and view all the answers

    Why do birds cover their feet with feathers?

    <p>For external insulation</p> Signup and view all the answers

    What do aquatic animals like whales and seals have for internal insulation?

    <p>A thick layer of fat</p> Signup and view all the answers

    What do some animals do to prevent excessive heat loss at appendages?

    <p>Not specified in the text</p> Signup and view all the answers

    What do larger mammals like polar bears do to keep warm?

    <p>Increase their fur thickness</p> Signup and view all the answers

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