forests‚ and other natural resources. Even as early as the middle ages‚ farmers in the East and what would become South America realized the need for crop rotation to prevent soil erosion. In Europe‚ the plague prompted improvements in the public health system‚ particularly to improve the water. Also‚ due to Englanders nearly depleting all of their forests‚ they switched to coal—a resource that would later cause many more health problems‚ especially in the larger cities. Beyond that‚ as health problems
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In the 5000m race the runner must use all 3 energy systems ‚ which are ATP‚ aerobic and lactic acid systems to succeed as the race has different areas needed for their use‚ all 3 energy systems contribute regardless of the intensity or duration of the exercise. When the athlete comes to the starting line he/she most probably will want to make a dashing start to the race to tactically get a good starting position‚ so must get off the line‚ in the first 40-50m‚ as hard as he or she can. By getting
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Structure and Function of the Human Digestive System By Caitlin Ong Organs of the Digestive System Mouth Structure: The mouth consists of the upper and lower jaw‚ that contain gums which hold teeth‚ the roof of the mouth is the palate and the tongue occupies the floor of the mouth. The salivary glands have ducts that open in the mouth. Function: The mouth is where the first step of digestion begins. Known as mechanical digestion‚ this involves chewing with your teeth to break the food
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The Integumentary system maintains the body’s temperature‚ homeostasis‚ and delivers sensory information. Hair‚ nails‚ skin‚ glands and nerves are all part of the integumentary system. The integumentary systems main functions are to protect and keep the body safe from all external environments. Furthermore the roles of the integumentary system are to help control the body temperature‚ remove any unwanted toxins in the body and fight against any illness or disease. Thermoregulation is a function
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air conditioner worked. I must have made him answer at least a 1000 questions throughout my lifetime. Eventually‚ I found an interest in human anatomy. I remember my parents buying me books one in particular titled “The Human Body System”. I remember being glued to the pages. Each page captivated me with a new sense of excitement. It fascinated me how humans were made of billions of cells‚ and how the heart actually had valves and chambers functioning to pump blood throughout the body. My sophomore
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Human Digestive System Single-celled organisms can directly take in nutrients from their outside environment. Multi-cellular animals‚ with most of their cells removed from contact directly with the outside environment‚ have developed specialized structures for obtaining and breaking down their food. The human digestive system is a complex series of organs and glands that processes food. It is a coiled‚ muscular tube (6-9 meters long when fully extended) extending from the mouth to the
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In order to survive all the body systems in an animal need to function together. In all there are 10 major human body systems. Three of these systems are the skeletal system‚ muscular system‚ and the digestive system. The skeletal system supports and protects our inner organs. Without it we would be like a big bowl of jello‚ and your organs would get glopped by the rest of your body. Our bones make it possible to move. To help us move better we have four different types of joints. A joint is where
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You might be at a location where there is only one Ethernet connection available (hotel room‚ office or meeting room etc.) and you need to share the Internet connection with other people or devices. Connectify is a free utility which is light on system resources and makes it easy for you to set up your Windows 7 machine as a secure WiFi hotspot. Note: Connectify only works with Windows 7 Home and above‚ Starter is not supported. Connectify Installation is quick and easy‚ and once complete‚ you
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Organization of the human body Human anatomy and physiology – study of the structure and function of the human body. Anatomy- the scientific discipline that investigates the structure of the human body. Physiology – The scientific discipline that investigates the process of functions of living things. 6 Structural levels 1. Chemical level – atoms combine to form molecules 2. Cell level – Molecule form organelles 3. Tissue level – similar and surrounding material make up tissues
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Respiratory system From Wikipedia‚ the free encyclopedia See also: Respiratory tract Respiratory system A complete‚ schematic view of the human respiratory system with their parts and functions. Latin systema respiratorium The respiratory system (or ventilatory system) is the biological system that introduces respiratory gases to the interior and performs gas exchange. In humans and other mammals‚ the anatomical features of the respiratory system include airways‚ lungs‚ and the respiratory
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