Across
- 3. Organism that provides food and shelter for a parasite.
- 4. Organism or virus that lives on or in a living host organism and takes food from it, causing harm to the host.
- 6. A member of the animal kingdom. Animals are multicellular and have cells without cell walls.
- 8. A non-living particle that can change how a living cell functions when it enters a cell. Inside a cell, a virus often causes the cell to make copies of the virus.
- 9. A member of the plant kingdom. Plants have chloroplasts and so can photosynthesise.
- 10. A substance that can speed up some processes in living things (e.g. by breaking down food molecules).
- 12. When a virus (or DNA) makes copies of itself.
- 15. An organism made of many cells.
- 17. A long molecule that contains instructions for organisms and their cells.
- 18. When particles spread and mix with each other without anything moving them.
- 21. Length of DNA that contains the instructions for making a protein, and helps to produce an inherited characteristic of an organism.
Down
- 1. A member of the protoctist kingdom. Many protoctists are unicellular.
- 2. Organism too small to be seen with the naked eye.
- 5. Type of prokaryote organism. Plural is bacteria.
- 7. fission, When a cell splits in two.
- 11. There are five kingdoms into which organisms are divided: plants, animals, fungi, protoctists and prokaryotes.
- 13. A member of the prokaryote kingdom. Prokaryotes are all unicellular and have cells that lack nuclei.
- 14. A member of the fungi kingdom. A fungus can be multicellular or unicellular but does not make its own food. Plural is fungi.
- 16. Basic unit of all life. All organisms are made of cells.
- 19. A tail-like structure that rotates, allowing a unicellular organism to move. Plural is flagella.
- 20. An organism made of one cell.