Across
- 3. Members of each species compete regularly for resources
- 6. Process in which organisms' survive and thrive within their suited environment
- 8. Principle stating that all organisms living/extinct originated from common ancestors
- 9. Organs that have been reduced in size to the point in which that they're just traces of homologous structures
Down
- 1. structures containing different mature forms but, develop from same embryonic tissue
- 2. process of inheriting characteristics or traits to increase organism fitness
- 4. taking place without humans individuals of a population reproduce with increasing selected traits over time contributing to an organisms fitness
- 5. an individual's ability to survive and reproduce in it's specific environment
- 7. Process in which nature provides variation, in which organisms select most useful variations