(Originais Teachy 2024) - Question Hard of Sciences

Imagine you are a detective of the human body and have been assigned the mission to investigate how a large amount of blood can travel throughout our body. To solve this mystery, you need to gather information about the circulatory system, which is like a very busy road, with cars (blood) coming and going. As a good detective, you need to describe the role of the heart, veins, and arteries in this 'road', explaining how each part helps the blood circulate and what the differences are between veins and arteries. Additionally, you should compare the circulatory system to a washing machine, relating the functions of the engine (heart), the entry of clean water (veins), and the exit of dirty water (arteries) to each part of the circulatory system. Based on what you learn about the circulatory system, write how you think a 'day in the life' of the cells being transported by the blood would be, from the moment they leave the heart, pass through the lungs, and return to the heart.