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Shedding Light on the Dinosaur-Bird Connection

Quiz by Nicole Garcia

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7 questions
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  • Q1
    What is a dinosaur that still lives among us today?
    a Sinornithosaurus
    an Archaeopteryx
    a bird
    a reptile
    120s
  • Q2
    What does the author compare to living birds in this text?
    non-bird theropods
    huge herbivores with small heads
    living reptiles
    extinct birds
    120s
  • Q3
    Read this sentence from the text. "Based on the evidence of shared characteristics, scientists have concluded that birds are a type of theropod dinosaur." What is a piece of skeletal evidence that supports the conclusion that birds are a type of theropod dinosaur?
    Feathers may have been used by non-bird dinosaurs in some of the ways that birds use their feathers today.
    Birds brood their nests, just as non-bird theropod dinosaurs did.
    The cerebrum in non-bird dinosaurs closely related to birds was very large.
    Birds and non-bird theropod dinosaurs have a hold in their hipbone.
    120s
  • Q4
    Read this sentence from the text. "Based on the evidence of shared characteristics, scientists have concluded that birds are a type f theropod dinosaur." What is a piece of behavioral evidence that supports the conclusion that birds are a type of theropod dinosaur?
    Birds brood their nests, just as non-bird theropod dinosaurs did.
    Birds and non-bird theropod dinosaurs have a hole in their hipbone.
    birds and non-bird dinosaurs have hollow bones.
    The cerebrum in non-bird dinosaurs closely related to birds was very large.
    120s
  • Q5
    What is the main idea of this text?
    Feathers were once thought to have evolved for flight, but now scientists think feathers may have originally served other purposes.
    The behavior of animals that have been extinct for a long time cannot be observed, and their DNA has been destroyed.
    Skeletal and behavioral evidence show that birds are dinosaurs, and brain evidence supports this conclusion.
    Scientists are using technology to reconstruct the inside of fossilized skulls and learn more about dinosaur brains.
    120s
  • Q6
    Read these sentences from the text. " One of the brains sampled by Dr. Balanoff was that of Archaeopteryx, a non-bird dinosaur that was thought to mark the transition from non-bird dinosaur to bird. 'If Archaeopteryx had a flight-ready brain, which is almost certainly the case given its morphology, then so did at least some other non-bird dinosaurs,' says Dr. Balanoff. She points out though, that there is no longer a clear boundary showing where the non-bird dinosaurs end and where birds begin. 'That's how evolution works. It can be a slow and messy process, and eventually we end up with the amazing diversity of things flying around us today.'" What does the word "evolution" mean here?
    change that happens over many generations
    a sudden and unexpected increase in size or amount
    a sudden and unexpected decrease in size or amount
    change that takes a day or two to happen
    120s
  • Q7
    Choose the answer that best completes the sentence. Bigger brains in primates prepared the way for them to walk on two legs. ___________, bigger brains in dinosaurs prepared the way for flight.
    Similarly
    In particular
    Otherwise
    For instance
    120s

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