Biology Final

6. Regulation and maintenance of constant internal conditions in an organism.
8. Protein markers on the surfaces of cells and viruses that help the immune system identify a foreign cell or virus.
11. Process of producing ATP by breaking down carbon-based molecules when oxygen is present.
12. Attraction between molecules of the same substance.
13. Uncontrolled cell division.
15. Process by which light energy is converted to chemical energy.

1. Thin muscle below the rib cage that controls the flow of air into and out of the lungs.
2. Tissue that transports sugars in vascular plants.
3. Nonpolar molecule composed of hydrogen, carbon, and oxygen; includes fats and oils.
4. The regular growth, DNA replication, and cell division that occurs in eukaryotic cells.
5. A tube that connects the mouth to the stomach.
7. Molecule that makes up proteins.
9. Release of vapor through the pores of the skin or the stomata of plant tissue.
10. Disease-causing agents.
14. A chemical substance that helps digest fats.