The pulmonary arteries . carry blood away from the lungs contain oxygen-poor blood pump blood to the heart all of the above

What are four key elements of the study of economics?

Sammi is studying the interaction of the digestive and circulatory systems in the human body. she has listed various processes that occur in each of the systems. put the processes in order to describe the interaction between these two systems. tiles nutrients diffuse through the villi of the small intestine. digestive processes break nutrients down in the mouth, stomach, and small intestine. blood is pumped through the circulatory system to deliver nutrients to other organs. nutrients are ingested at the mouth. nutrients enter the capillaries of the circulatory system. sequence

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom