Across
- 2. Humans carry millions of it
- 5. It can let body’s immune system to kill virus
- 7. It controls substance in and out the cell
- 9. It repairs the cell membrane
- 10. It produces ribosomes
- 11. Store food and wastes
Down
- 1. Made of RNA and protein
- 3. It controls the cell
- 4. It packages proteins
- 5. It infect all life forms (e.g human)
- 6. It protect the cell
- 8. It produce proteins