ï¬ TEA states: A Gifted and Talentedâ student is a child or. youth who performs at or shows the potential for. performing at a remarkably high level of accomplishment. when compared to others of the same age, experience, or. environment and who exhibits high performance capability. in an intellectual, creative, or artistic area, possesses an.
The digestive system can respond to external stimuli, such as the sight or smell of food, and cause physiological changes before the food ever enters the body. This reflex is known as the cephalic phase of digestion.he endocrine system is affected largely by many internal and external stimuli. One internal stimulus that causes hormone release is blood pressure. Hypotension, or low blood pressure, is a large driving force for the release of vasopressin, a hormone which causes the retention of water in the kidneys.
Rate of digestion. Digestion of food involves chemical reactions that break up large food molecules into their âbuilding blockâ components. There are a number of factors that affect the rates of these reactions.We look at how surface area, temperature and pH all influence the rate of digestion of large food molecules.igestion of food involves both mechanical and chemical processes. Through digestion, large food particles are converted into smaller components that can be readily absorbed into the bloodstream. We look at mechanical digestion and the chemical digestion (enzymatic hydrolysis) of carbohydrates, proteins and fats.