What carries blood back to the heart?
A). Veins
B). Arteries
C). Both A & B
D). None
Veins
The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart.
1. Ringworm is a disease caused by
2. Oxygen in our blood is transported by a protein named
4. In what ways do lymph capillaries differ from blood capillaries?-
5. Which one of these is a communicable disease
6. According to scientists, the Big Bang occurred approximately ? years ago.
7. Study of classification of organisms is known as _____.
8. The world's only floating national park is situated in-
10. Which part of Nervous system controls involuntary actions?