Across
- 5. A chemical element is defined by a particle of substance that is unique to it
- 7. is two or more atoms connected by chemical bonds, which form the smallest unit of a substance that retains the composition and properties of that substance
- 10. is a biological organizational level between cells and a complete organ
- 12. is any live, biological system that works as a separate entity
- 13. specialized structures that perform various jobs inside cells
Down
- 1. your body's command center
- 2. are the basic building blocks of all living things
- 3. is an extremely large molecule, such as a protein or nucleic acid, that is vital to biophysical processes
- 4. A biological system made up of a collection of organs that cooperate to fulfill one or more activities.
- 6. the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma
- 8. identifiable structures in the body that conduct certain activities
- 9. the network of organs and tissues that help you breathe
- 11. a tissue of the body consisting of long cells that can contract and produce motion