AP BIOLOGY

Detailed explanation-1: -Circulatory/Cardiovascular System through the blood to most parts of the body provides nutrients and oxygen which is needed for our bodies to have ENERGY!

Detailed explanation-2: -The heart, blood and blood vessels work together to service the cells of the body. Using the network of arteries, veins and capillaries, blood carries carbon dioxide to the lungs (for exhalation) and picks up oxygen.

Detailed explanation-3: -The nervous and endocrine systems direct the action and function of the body. The digestive, respiratory, and circulatory systems work together to remove waste from the body while also absorbing necessary nutrients and compounds. Your circulatory system carries vital nutrients to the skeletal and muscular systems.

Detailed explanation-4: -The respiratory system brings oxygen into the lungs when you breathe. The digestive system breaks food down into nutrients such as glucose. Now the circulatory system enters the picture. It transports glucose and other nutrients from the digestive system to the cells.

Detailed explanation-5: -The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation). This exchange of oxygen and carbon dioxide is called respiration.