Across
- 3. Bacteria are small organisms, or living things, that can be found in all natural environments. They are made of a single cell. Most bacteria can be seen only with a microscope.
- 7. The cracking or breaking of a hard object or material.
- 8. Treatment with a vaccine to produce immunity against a disease; inoculation.
- 11. Lung inflammation caused by bacterial or viral infection.
- 12. (of a woman or female animal) having a child or young developing in the uterus.
- 13. An infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.
- 14. Part of the digestive system of the body, sometimes called the guts or bowels. This system deals with all the food and drink that you take into your body.
- 15. A part of an organism which is typically self-contained and has a specific vital function.
Down
- 1. A tube-shaped sac attached to and opening into the lower end of the large intestine in humans and some other mammals.
- 2. A viral infection that attacks your respiratory system.
- 4. The part of the body of a vertebrate containing the digestive and reproductive organs; the belly.
- 5. A medical instrument for listening to the action of someone's heart or breathing.
- 6. The science or practice of the diagnosis, treatment, and prevention of disease.
- 9. The action of making a person or animal immune to infection, typically by inoculation.
- 10. A small case or container, especially a round or cylindrical one.