Structure of Living Things

4. The smallest part of a living thing that can carry out processes of life
7. A hard outer layer of a plant cell that protects the cell and provides support
9. A group of organs that work together to do a certain job
10. An organism that cannot make its own food, but instead absorbs food from decaying organisms
14. A body part made of different kinds of tissues that work together to do a certain job
15. An animal that does not have a backbone
16. A large, round structure at the center of a cell that controls the activities of the cell
17. A part of a plant cell that uses energy from sunlight to make food

1. One-celled living things that do not have a nucleus
2. A group of similar cells that do the same job in an organism
3. Any plant that has tubes for moving water and other materials to where they are needed
4. The gel-like material inside the cell that holds all the other inner parts of the cell
5. The broadest group into which living things are classified
6. Any plant that soaks up water from the ground directly into its cells
7. A thin outer layer of a cell
8. The part of the cell that breaks down food and turns it into energy for the cell
11. A one- or many-celled organism that can either make, eat, or absorb food
12. An animal that has a backbone
13. A cell part that holds food, water, and wastes
18. An individual living thing that can carry out all its own life activities