Leaf-Cutter Ants' Mineral Armor Quiz
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Questions and Answers

What is the extra protective coating on a leaf-cutter ant's body armor made of?

  • Calcite with a high concentration of magnesium (correct)
  • Calcium carbonate
  • Iron oxide
  • Silicon dioxide
  • How did evolutionary biologist Hongjie Li study the mineral-based protective coating on a leaf-cutter ant's body armor?

  • Using a microscope to observe the coating
  • Using a hammer to break the exoskeleton
  • Using soap to remove the coating
  • Using mouthwash to dissolve the mineral without damaging the exoskeleton (correct)
  • What is the similarity between the mineral-based protective coating on a leaf-cutter ant's body armor and a sea urchin's tooth?

  • Both are made of calcium carbonate
  • Both are made of iron oxide
  • Both are made of calcite with a high concentration of magnesium (correct)
  • Both are made of silicon dioxide
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