Birds General Features and Structure
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Questions and Answers

What percentage of a bird's weight is contributed by the chest muscles?

  • 30%
  • 20%
  • 40%
  • 35% (correct)
  • What is the primary function of a bird's wings?

  • To help them swim
  • To provide them with the ability to fly (correct)
  • To protect them from predators
  • To regulate their body temperature
  • What are the two types of feathers found in birds?

  • Down feathers and Fur feathers
  • Summer feathers and Winter feathers
  • Flight feathers and Down feathers (correct)
  • Waterproof feathers and Insulating feathers
  • What is the material that makes up a bird's feathers?

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

    Why do birds have strong chest muscles?

    <p>To move their wings and fly</p> Signup and view all the answers

    What is unique about a bird's jaws and teeth?

    <p>They have lightweight keratin beaks instead of teeth</p> Signup and view all the answers

    What is a major significance of a bird's beak structure?

    <p>Eating, preening, and defending</p> Signup and view all the answers

    What is the primary function of air sacs in birds?

    <p>To inhale air and push it to the lungs</p> Signup and view all the answers

    What is unique about the heart of birds?

    <p>It has a large four-chambered structure</p> Signup and view all the answers

    What is a characteristic of the feet of birds like owls and eagles?

    <p>They have sharp, curved talons for catching prey</p> Signup and view all the answers

    Why is it essential for birds to have a lightweight body?

    <p>To stay aloft during flight</p> Signup and view all the answers

    What is unique about the feet of birds like seagulls and ducks?

    <p>They have webbed feet for swimming and walking</p> Signup and view all the answers

    What is the primary function of a bird's crop?

    <p>Moistening and storing food before digestion</p> Signup and view all the answers

    What is unique about a bird's kidneys?

    <p>They are located on the underside of the pelvis</p> Signup and view all the answers

    What is a characteristic of a bird's brain?

    <p>It is larger compared to body size</p> Signup and view all the answers

    What is a feature of a bird's circulatory system?

    <p>It has a larger heart</p> Signup and view all the answers

    What is a characteristic of a bird's urinary system?

    <p>They do not have a bladder</p> Signup and view all the answers

    What is a characteristic of a bird's vision?

    <p>They have excellent sight</p> Signup and view all the answers

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