Metabolism

5. a molecule that can release energy
7. a group of tissues that work together to perform a job
9. the body system that takes in food and breaks it down
10. the changes in the environment that organisms respond to
11. the ability to make things move or change
12. the most basic unit of matter
16. the body system that transports molecules to and from all body cells
17. all living things can also be called...
20. a group of cells that work together to perform a job
21. allows body movement, posture, and produces heat
22. the organelle where cellular respiration occurs (energy production)
23. anything that has mass and takes up space
24. the body system that communicates between nerve cells, the spinal cord, and the brain
25. a molecule made of carbon and oxygen

1. a molecule that animals get from the air and use to release energy
2. the parts of a cell that perform a job
3. the body system that removes waste from your body and controls water balance
4. the process by which organisms maintain a stable internal environment
6. molecules that are the building blocks of proteins
8. the body system that takes in oxygen and releases carbon dioxide
13. two or more atoms chemically combined
14. process that releases energy by breaking down glucose with the help of oxygen
15. the organelle that is the "control center" of the cell
18. to combine or build larger structures from smaller ones
19. large molecules that perform important functions inside living things
22. all the chemical reactions that occur within an organism