Answer: 1. There are three main types of conjunctivitis: allergic, infectious, and chemical.
2. Brush twice a day, Use fluoride toothpaste, and Floss.
Hemoglobin should be the answer to this question
Answer:
Explanation:
These are arteries, which prevent the backflow of blood because the walls have little muscle to pump blood back to the heart.
The answer B makes the most sense.