Answer:
External respiration: CO2 diffuses into the blood
Explanation:
External respiration is also called the pulmonary gas exchange. It refers to the diffusion of O2 from the air in the alveoli of the lungs to blood in pulmonary capillaries and diffusion of CO2 in the opposite direction from the capillary blood into the alveolar air. External respiration in the lungs is responsible for oxygenation of deoxygenated blood coming from the right side of the heart. The oxygenated blood is then returned to the left side of the heart.
Charles Darwin was considered revolutionary because of his contributions to the evolutionary theory
Animals have cell respiration. But animals don't do photosynthesis because photosynthesis is energy from the sun, we don't get energy from the sun we get it from the food we eat
kinetic energy is thy answer my dude