Which of the following statements are true about veins in the human circulatory system?
1. All veins carry carbon dioxide-rich blood.
2. Veins carry blood from different organs to the heart.
1
1 only
2
Both 1 and 2
3
Neither 1 nor 2
4
2 only
Which of the following statements are true about veins in the human circulatory system?
1. All veins carry carbon dioxide-rich blood.
2. Veins carry blood from different organs to the heart.