Science

2. any living thing.
5. organisms that consist of a single cell
6. a self contained system with a larger system.
11. organelles that contain digestive enzymes
13. spherical ball inside the nucleus
15. continuously receives info about the external environment and protects the bodies deeper tissue.
16. brings oxygen into the body and takes waste from cells out of the body.
17. are like storage bubbles inside of plant and animal cells
18. a collection of tissues joined together into a structure that performs specialized functions.
20. a mass of similar cells that perform a specialized function.
21. breaks down food to get nutrients that the body is able to use.

1. the basic unit of life.
3. cell structures that make protein
4. organisms that consist of many cells.
7. "powerhouse" of the cell
8. is a jelly like material that hold organelles and other components of a cell
9. a group of interacting or independent elements forming a complex whole as in all the factors or variables in an environment, or all the variables treat might effect a science experiment.
10. circulates blood throughout the body.
12. gives shape to the body and helps with movement.
14. having characteristics that allow specific functions to be performed.
19. is the brain of the cell, it contains DNA and genetic information