Microbiology Crossword

4. A substance prepared from killed or weakened pathogens and introduced into a body to produce immunity
6. Able to be passed easily from one person to another
8. is an organism that feeds on another individual known as the host. They either live on or in the host's body
10. are non-photosynthetic organisms and most are multicellular. Many obtain energy and nutrients from dead organic matter
11. a chemical that kills bacteria or slows growth without harming body cells.
12. Living things that cause human diseases
14. an organism that has only one cell
15. a disease that has spread worldwide
16. are organisms that lack tissue differentiation, are unicellular, and exhibit diversity of form and size

1. May also be called a pathogen. They are contagious (are capable of spreading from one person to another.)
2. a disease that has spread in a particular region
3. are prokaryotic single-celled organisms
5. is the science that explores microscopic organisms
7. are nonliving particles composed of nucleic acid(DNA or RNA) and a protein coat. Viruses need a host cell to reproduce.(smallest)
8. Animal-like protists are called protozoa. Like animals, they can move, and they are heterotrophs.
9. an organism that has multiple cells
13. are among the most widespread illnesses in humans caused by viruses