An individual must hold an Administrative Services Credential to provide the following services in grades preschool, Kâ12 and adults: Evaluate the quality and effectiveness of instructional services at the school site level.
1 Release of water, acids, enzymes, and buffers by the digestive tract and by the accessory organs into the lumen of the digestive tract. 2  Absorption. 3  Movement of small organic molecules, electrolytes, vitamins, and water across the digestive epithelium and into the blood and lymph.astrointestinal (GI) tract (also called alimentary canal or digestive tract). 1  The GI tract is a continuous tube running from the mouth to the anus. 2  It includes the following organs: 3  mouth. 4  pharynx. 5  esophagus. 6  stomach. 7  small intestine. 8  large intestine.
The digestive system. Bacteria in your GI tract, also called gut flora or microbiome, help with digestion. Parts of your nervous and circulatory systems also help. Working together, nerves, hormones, bacteria, blood, and the organs of your digestive system digest the foods and liquids you eat or drink each day. Why is digestion important?