Across
- 3. Structures in the nucleus made of DNA that carry instructions for growth and reproduction
- 5. Unicellular organisms, usually prokaryotes, that can live almost anywhere and form colonies
- 7. The control center of a eukaryotic cell that holds DNA and directs activities like MRS GREN
- 8. A tool that magnifies tiny things, like cells, so we can study them
- 10. Unicellular or multicellular organisms with chloroplasts that make food from sunlight
- 11. A unicellular organism with no nucleus - its DNA floats free inside
- 12. A group of organs that work together to carry out a major life process
- 14. membrane The outer layer of all cells that controls what goes in and out
- 18. A living thing made of just one cell that does all life processes by itself
Down
- 1. An organism with cells that have a nucleus to hold DNA
- 2. Parts inside cells that use sunlight to make food
- 4. A structure made of different tissues that work together to perform a big job in an organism
- 6. The order of how living things are built: cells→tissues→organs→ systems→ organism
- 9. A unicellular eukaryote that uses respiration to break down sugar and can reproduce quickly
- 13. A living thing made of many cells that work together to perform life processes
- 15. Wall A tough outer layer around plant cells that provides structure
- 16. The molecule inside cells that carries instructions for life, like growth and reproduction
- 17. Groups of similar cells working together to do a specific job in a multicellular organism
