Q: The medical condition of edema is also known as:

1. Narcolepsy
2. Liver spots
3. Hives
4. Dropsy

Q: Which part of the ear helps maintain balance?

1. Ear canal
2. Eardrum
3. Outer ear
4. Semi-circular canal

Q: What controls the rate of chemical reactions in your body?

1. DNA
2. Carbohydrates
3. Enzymes
4. Messenger RNA