Across
- 1. Darwins evidence of evolution
- 5. organs reduced to the point in which they're just traces of homologous organs
- 6. structure having different mature forms but,same embryonic tissue
- 7. organisms produced by natural selection having different structures,niches or inhabiting other habitats
- 8. nature provides variation, while humans select usefull variations
- 10. what did Darwin call the ability of an individual to survive and reproduce
- 11. inherited charcteristics that increase an organism's survival chance
Down
- 2. members of each species compete for recources
- 3. principle stating that all organisms living/extinct originate from common ancestors
- 4. individuals that are suited to their enviroment with the ability to survive/reproduce successfully
- 9. this results in changes of inherited characteristics of a population increasing fitness over time