1.
Absorption: PROCESS in which FOOD MOLECULES PASS through the walls of the Villi and into the BLOODSTREAM
2.
Alveoli: In the LUNGS, the TINY, THIN-WALLED sacs surrounded by capillaries where EXCHANGE OF OXYGEN & CARBON DIOXIDE takes place
3.
Cell: The SMALLEST FUNCTIONAL UNIT in an organism
4.
Cellular Respiration: A SERIES of CHEMICAL PROCESSES in which OXYGEN COMBINES WITH FOOD MOLECULES and ENERGY IS RELEASED
5.
Digestion: The BREAKDOWN OF FOODS you eat into smaller and simpler molecules that can be used by the cells in your body
6.
Enzyme: A PROTEIN that helps the body carr out CHEMICAL REACTIONS
7.
Excretion: The REMOVAL of WASTE PRODUCTS
8.
Homeostasis: PROCESS when a body MAINTAINS STABLE INTERNAL ENVIRONMENT
9.
Minerals: INORGANIC SUBSTANCES that are involved in many of the body's chemical reactions
10.
Negative Feedback: Mechanism that helps the body CHANGE INTERNAL CONDITION and RETURN TO NORMAL STATE
11.
Organ: A STRUCTURE MADE UP OF DIFFERENT TYPES OF TISSUES that work together
12.
Organ System: A GROUP OF ORGANS that work together to do a certain job
13.
Organic Compounds: COMPOUNDS containing CARBON with few exceptions
14.
Tissue: GROUPS OF SIMILAR CELLS that do the same sort of work
15.
Villi: TINY FINGERLIKE projections
