Across
- 1. an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy
- 4. the ability of an organism to resist a particular infection or toxin by the action of specific
- 5. organism that can cause a disease.
- 6. a disorder of structure or function in a human, animal, or plant, especially one that produces specific symptoms or that affects a specific location and is not simply a direct result of physical injury.
Down
- 1. a substance used to stimulate the production of antibodies and provide immunity against one or several diseases
- 2. a blood protein produced in response to and counteracting a specific antigen.
- 3. a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus