Across
- 1. structures that have no apparent function and appear to be in residual parts from an ancestor
- 4. a type symbiosis in which one organism lives inside the other, acting as one organism
- 8. process ofliving organisms developing from non living matter
- 11. substances that are capable of killing and inhibiting growth of specific organisms
Down
- 2. immunity to a pathogen that occurs following exposure to said pathogen
- 3. change in the characteristics of a species over many generation
- 5. where older rocks and rock layers are formed first and are beneath younger rocks and rock layers
- 6. provided when a person is given antibodies to a disease rather than producing them through his or her immune system
- 7. similar physical features in organisms that share a common ancestor, but features serve completely different functions
- 9. the process through which populations of living organisms adapt and change
- 10. a preparation that is used to stimulate the body's immune response against diseases