Solve these clues to fill the grid.
- Any disease-producing agent
- 2 Across
- Providing assistance or serving a useful function
- 4 Across
- An animal or plant that lives in or on a host
- 5 Across
- Care provided to improve a situation (plural)
- 6 Across
- A long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like
- 7 Across
- Any organism of ___ size
- 8 Across
- Tiniest unit of living things
- 11 Across
- The invasion of the body by pathogenic microorganisms and their multiplication which can lead
- 12 Across
- Reproduction of some unicellular organisms by division of the cell into two more or less equal parts
- 13 Across
- A poisonous substance produced during the metabolism and growth of certain microorganisms and some (plural)
- 14 Across
- Tiny single-celled living things, some of which cause illness
- 1 Down
- Having cells that lack membrane-bound nuclei
- 3 Down
- An organism that depends on complex organic substances for nutrition
- 4 Down
- An illness that harms the body
- 7 Down
- A chemical substance derivable from a mold or bacterium that can kill microorganisms and cure (plural)
- 9 Down
- A system of two stars that revolve around each other under their mutual gravitation
- 10 Down
