1) What is the circulatory system? a) The system that carry blood away from and towards the heart. b) The heart and lungs  c) Vessels and blood d) The system that allows us to breath  2) What does the blood transport to the cells? a) Air b) Oxygen c) Red blood cells d) Platelets 3) What are the components of the circulatory system? a) Heart, blood and cells b) Lungs and heart c) Vessels, heart and blood d) Oxygen, nutrients and water 4) What is the centre of the ciculatory system? a) Blood b) Vessels c) Heart d) Lungs 5) What are the types of blood vessels? a) O+, O-, A+, B- and others b) Arteries, veins and capillaries c) Red blood cells and white blood cells d) Platelets and plasma

Circulatory system

打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？