Instead of "I can never do this" say "I've done things like this before
Well, this would be a science question, not a health question. But an example of the transfer of energy from the atmosphere to the lithosphere would be the water cycle which transfers the water mass energy from the atmosphere to the lithosphere and back again.
Answer:With this system, blood always flows in only one direction inside the heart. There are also valves at the bottom of the large arteries that carry blood away from the heart: the aorta and the pulmonary artery. These valves keep the blood from flowing backward into the heart once it has been pumped out.
Explanation:
The soluble products of the digestive system (i.e.glucose) are moved into the circulatory system and transported to organs to perform a function (i.e. muscles for respiration)
The best answer for the blood vessels' valves would be these are veins that would then help in preventing the back flow of blood because the walls have small muscle to pump the blood back to the heart.Hope this is the answer.
