Digestion - breaking down of complex foods into nutrients an organism can use

Epiglottis - flap of cartilage that covers the larynx when swallowing

Esophagus - location where food passes from hte pharynx to the stomach in humans/location where food passes from the pharynx to the crop (earthworm)/ in grasshoppers, it is were food passes from mouth to crop

Feces- indigestible material which leaves the organism

Fiber - indigestible material mainly made up of cellulose

Gall Bladder - a sac used to store bile from the liver

Gastrovascular Cavity - in hydra, location where food is brought into the organism

Gizzard - muscular organ that crushes food into smaller pieces

Gullet - in paramecia, a sac where food collects, when full it pinches off to become a food vacuole

Heterotrophs - organisms which cannot produce their own food and must eat other organisms

Intestine - organ where most digestion and absorption take place, has an increased surface area/in grasshoppers it is were undigested material passes from stomach to rectum

Lacteals - lymphatic vessels in the small intestine

Large Intestine - Used to reabsorb water from undigested material

Liver - an organ in the body that secretes bile

Minerals - a required nutrient made of elements or ions cells require to act as co-enzyme

Nutrients - the substances that provide energy and materials for growth, repair, and maintenance of cells

Nutrition - organisms get food and break it down by a process called nutrition, food is broken down so it can be used for metabolism

Oral groove - in paramecia, where food is swept from the movement of cilia

Pancreas - an organ that secretes digestive juices

Pancreatic Juice - a digestive fluid in the pancreas used to break down starch, proteins and fats

Pepsin - A stomach enzyme that digest proteins

Peristalsis - A pattern of contraction and relaxation that forces food through the digestive tract

Pharynx - a tube between the mouth and the esophagus in humans/muscular area which pulls food into the mouth of earthworms

Pseudopod - projections of the cell, enabling certain animals to grab food

Rectum - location where undigested material is temporarily stored

Saliva - secretion of the salivary glands which have digestive enzymes that break down food

Salivary Amylase - enzymes found in saliva which break down starch

Small intestine - section of the digestive tract where most chemical digestion and the absorption of nearly all nutrients occur

Sphincter - a circular muscle that relaxes or contracts to allow movement of material

Stomach - Organ where food is temporarily stored and partially digested/in the grasshopper it is where food passes from gizzard to intestine, and were chemical digestion & absorption take place

Typhlosole - fold in the intestine that increases its surface area, in earthworms

Villi - projections in the small intestine