Student question: Do moths that live on sloths have family dinners?
Teacher response: The detailed solution is: Algae grows on sloths. Sloth moths feed on algae that grows on sloths. Sloth moth caterpillars feed on sloth dung. Sloths defecate far from their ususl abode..

Student question: Do the Egyptian pyramids look the same from outside as they did when new?
Teacher response: The detailed solution is: When originally built, the Great Pyramids had a thin surface of limestone covering the bricks, making them shine in the sun. Over the centuries, the limestone layer has been removed by thieves and erosion, exposing the more common stone bricks underneath..

Student question: Would a German Shepherd be welcome in an airport?
Teacher response: The detailed solution is: Airports in the US must be compliant with the ADA allowing for service dogs as medical equipment. Police security often use dogs like German Shepherds to search for drugs at airports. Some airlines have special travel accommodations for dogs..

Student question: Could the endowment of Johns Hopkins University pay off the MBTA debt?
Teacher response:
The detailed solution is: Johns Hopkins University had an endowment of $6.28 billion in 2019. The MBTA is in debt for approximately $9 billion..