The Circulatory System in Animals Physical Education Essay
Physical education is the foundation of a comprehensive physical school. activity program. It provides cognitive content and instruction designed to develop motor skills, knowledge and skills. behaviors. ~ In animals with lungs, in amphibians, reptiles, birds and mammals, the heart shows different stages of evolution, from a single to a double pump that circulates the blood 1 to the lungs and 2 to the body as a whole. In humans and other mammals and in birds, the heart is a double pump with four chambers that forms the center of the circulatory system. Cambridge GCSE and IGCSE Physical Education PE Circulatory System – whole chapter, all lessons. This is a complete resource, containing everything you need to teach the course from scratch: The presentations include full explanations of each concept, meaning limited teaching experience or knowledge of the course is required. Many animals have a closed circulatory system, in which blood is stored in vessels and pumped through a heart. Some organisms, such as many molluscs, have an open system, with blood washing over and around the tissues. Animals with a closed circulatory system generally have higher blood pressure. The blood can do that too,