I just took a test in school today. What question was I asked?

Question I was asked: Rheumatoid arthritis is a disease that occurs when the body attacks its own tissues. Which body system becomes disordered first?

I just took a test in school today. What question was I asked?

Question I was asked: In a lab investigation, a student notes that two metal blocks have the same mass. Based on this observation, if the two blocks were put on opposite sides of a balance, they would best represent

I just took a test in school today. What question was I asked?

Question I was asked:
The periodic table of the elements is systematically organized according to the