Answer:
The circulatory system comprises of blood vessels which help in removing carbon dioxide from the body. The carbon dioxide produced by the cells is collected by the capillaries where the carbon dioxide gets dissolved in the blood. This blood is carried to the heart via the veins. The heart pumps the deoxygenated blood to the lungs where gaseous exchange occurs between the blood capillaries and the alveoli of the lungs. When we exhale, the carbon dioxide is breathed out.
The Vacuole is the packaging center in the cell.
Hope that helps :)
Answer:
Net force
Explanation:
Net force is the vector sum of forces acting on a particle or body. The net force is a single force that replaces the effect of the original forces on the particle's motion. It gives the particle the same acceleration as all those actual forces together as described by the Newton's second law of motion.
The muscles are external intercostal muscles, diapraghm and the abdomen muscles contract to allow air to pass into the lungs through the trachea. These muscle contractions will result in an added volume of the thorax which in return will cause in a pressure drop in the thorax. These contractions are essential in inhalation and exhalation.
