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Middle School Set 13 (2019) - Round 1 - Question 4

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TOSS-UP: ENERGY Multiple Choice

Scientists at Argonne National Lab have been studying the drinking mechanisms in mosquitoes. They watched liquid flow through the proboscis [pro-BOSS-is] using synchrotron X-rays to penetrate the exoskeleton, which is made of what material?

  • W. Chitin [KYE-tin]
  • X. Keratin
  • Y. Cellulose
  • Z. Maltose
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