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

Question I was asked: Earth is made of different layers that have varying characteristics. Which is the thickest layer?

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

Question I was asked: Malaria is a common disease in many countries. What is the cause of this disease?

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

Question I was asked:
How do traits of animals such as ear shape, nose shape, and hair color most often get passed to offspring?