Across
- 5. are prokaryotic single-celled organisms
- 7. are organisms that lack tissue differentiation, are unicellular and exhibit diversity of form and size
- 10. Able to be passed easily from one person to another
- 11. a single-celled organism
- 12. Confined to one region/city or place
- 13. are nonliving particles of nucleic acid (DNA or RNA) and a protein coat. Viruses need a host cell to reproduce (smallest)
- 14. May also be caused by a pathogen. They are contagious.
- 16. living things that cause human diseases.
- 17. an organism that consists of more than one cell
Down
- 1. science explores microscopic organisms including viruses, bacteria, protozoa, parasites, and some fungi and agale.
- 2. A global outbreak/spread of viruses
- 3. is an organism that feeds on another individual, the host. They either live on or in their host’s body
- 4. animal-like protists are called protozoa. Like animals, they can move and they are heterotrophs
- 6. Organism that is infected with diseases agent (virus, bacteria, etc.) where it grows and reproduces.
- 8. A chemical that kills bacteria or slows their growth without harming body cells
- 9. Are among the most widespread illnesses in humans caused by viruses
- 13. Substances prepared from killed or weakened pathogens and introduced into a body to produce immunity
- 15. are nonphotosynthetic organisms and most are multicellular. Many obtain energy ad nutrients from dead organic matter
