10scienceAnimals characterized by a segmented spinal column are called vertebrates. In biology, there are five classes of vertebrates, one of which is called mammals. What are the other four?Show AnswerShare
16scienceWhich disease was appropriately named after the dark splotches it formed on its victims' bodies in the 14th century?Show AnswerShare
14scienceWhich planet has the shortest day of any planet in our solar system - only 9 hours and 55 minutes?Show AnswerShare
5scienceBONUS: One of the craziest inventions of all time was patented in 1903. To protect the eyes of a certain animal from being damaged during feeding, eyeglasses were created for what animals?Show AnswerShare
8scienceWhen blood is first pumped out of the human heart, it first enters a certain organ, then it returns to the heart a second time before continuing its trip through the body. Which organ is this?Show AnswerShare
6scienceAsteroids are small irregularly shaped bodies, sometimes called minor planets, which orbit the sun, and are most frequently found between which two planets?Show AnswerShare
14scienceLast week in Philadelphia Roberto Rodriguez left the hospital, 3 1/2 months after being operated on to remove a tumor in his lung. This was one of the most unusual and delicate medical procedures ever performed. What was so unusual about Roberto's operatiShow AnswerShare
16scienceWhich gaseous chemical element glows reddish orange when an electric charge passes through it?Show AnswerShare
12scienceOn January 24, 1996, the Food and Drug Administration approved human consumption of a synthetic, calorie free fat substitute called what?Show AnswerShare
7scienceAs you travel around the earth, each one-hour change in time zone occurs, on the average, after how many degrees of longitude?Show AnswerShare
17scienceThere is one bone in the human body which does not connect to any other bone in the body. Where in the body is this hyoid bone located?Show AnswerShare
