Across
- 2. religion with one god
- 3. explanation based on observation with repeated tests and confirmation
- 5. organisms slowly evolve as they adapt to their environment
- 8. most distant human ancestor from 500 million years ago
- 9. faith/religion based idea for how life originated on Earth
- 10. first land animal
Down
- 1. religion with multiple gods
- 4. type of natural selection in which genes are passed down by male competition or female choice
- 6. science based explanation for how life originated on Earth
- 7. writer of Origin of Species in 1859