its true please mark me as brainliest i need it.
Main function is to help support and give shape to the cell also serve a transportation function, as they are the routes upon which organelles move through the cell
Platinum: Mostly mined around that area.
Unoxygenated blood from veins enters the right atrium then it goes down to the right ventricle then out through the pulmonary artery to the lungs where it becomes oxygenated blood which then enters the heart through the pulmonary veins and it goes to the left atrium and then is pumped down to the left ventricle and out through the aorta to the arteries where it travels to different organs and becomes deoxygenated and then the cycle repeats itself.
I don’t know if this is a question but yes a controlled experiment allows you to isolate and test the hypothesis
