Across
- 3. the evolution of a biological species;
- 5. relating to or caused by a virus;
- 6. the resemblance of an animal species to another species or to natural objects; provides concealment and protection from predators;
- 7. production of a chemical compound by a living organism;
- 9. disguise by camouflaging; exploit the natural surroundings to disguise something;
Down
- 1. any of a group of viruses that contain two single-strand linear RNA molecules per virion and reverse transcriptase (RNA to DNA)
- 2. the outer covering of protein surrounding the nucleic acid of a virus;
- 4. considered ancient life forms that evolved separately from bacteria and blue-green algae;
- 5. (virology) ultramicroscopic infectious agent that replicates itself only within cells of living hosts; many are pathogenic; a piece of nucleic acid (DNA or RNA) wrapped in a thin coat of protein;
- 8. (biology) the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms;
