Answer:
Propel- to push or drive (someone or something) forward or in a particular direction.
Answer:
1) A cardiovascular system is an organ system that conveys blood through vessels to and from all parts of the body, carrying nutrients and oxygen to tissues and removing carbon dioxide and other wastes.
2) "Capillaries connect the arteries to veins. The arteries deliver the oxygen-rich blood to the capillaries, where the actual exchange of oxygen and carbon dioxide occurs. The capillaries then deliver the waste-rich blood to the veins for transport back to the lungs and heart. Veins carry the blood back to the heart."
3) A heart attack is a blockage of blood flow to the heart muscle.
Answer:
The story aims to promote the beauty of African and its people. It describes the traveling experience that they had while crossing the desert, helping readers to understand how it is to walk through the desert for the people. It might be challenging and dangerous, but also beautiful and unforgettable.
