Body Organization

2. a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans
4. the study of the form and structure of an organism
8. control and communicate
10. the study of the processes of living organism
11. rigid cellulose barrier
12. the major part of the digestion of food occur
13. supports and protects the body
16. the study of how disease occurs
17. move and protect
19. each of the pair of organs situated within the rib cage, consisting of elastic sacs with branching passages into which air is drawn, so that oxygen can pass into the blood and carbon dioxide be removed
20. an organ system is a group of organs that work together to perform one or more functions. Each does a particular job in the body, and is made up of certain tissues

1. a large lobed glandular organ in the abdomen of vertebrates, involved in many metabolic processes
2. an individual animal, plant, or single-celled life form.
3. fights off invading germs:provides protection from diseases parasites
5. any of a number of organized or specialized structures within a living cell
6. the smallest structural and functional unit of an organism
7. produces RNA,which exits and travels to the ribosomes
9. secrete and protect
14. aggregate of similar cells and cell products forming a definite kind of structural material with a specific function, in a multi-cellular organism
15. cell recognition uses proteins embedded in membrane
18. a hollow muscular organ that pumps the blood through the circulatory system by rhythmic contraction and dilation.