Across
- 6. substance made from killed or weakened pathogens that introduce immunity when put into a body
- 10. multicellular organisms that gain energy and nutrients from dead organic matter ((are nonphotosynthetic
- 12. prokaryotic single-celled organisms
- 13. the science of exploring microscopic organisms
- 15. an illness or health-related issue that is showing up in more cases than would normally be excepted; occurs when an infectious disease rapidly spreads to many people
- 16. process of reproduction involving a single parent which results in a genetically identical offspring
- 18. organisms that can feed on another individual (host) and live on or in their host's body
- 20. organisms that lack tissue differentiation, are unicellular and exhibit diversity of form and size
Down
- 1. the most widespread illnesses in humans caused by viruses
- 2. agent that can induce or increase the frequency of mutation in organisms
- 3. able to pass easily from one person to another
- 4. organism /w only one cell
- 5. indicates a far higher # of people affected by a disease; also refers to a much larger region being affected--extreme cases are worldwide
- 7. are contagious and may also be caused by a pathogen
- 8. living things that can cause human diseases
- 9. a chemical that kills bacteria or slows their growth without harming body cells
- 11. nonliving particles made of DNA or RNA and a protein coat; needs a host cell to reproduce
- 14. organism that is infected with disease agent where it grows and reproduces
- 17. organism /w more than one cell
- 19. animal-like protists (can move and are heterotrophs)