Across
- 4. a famous group of islands of the coast of Ecuador in South America
- 6. How number of people or animals living in an area
- 8. winged animals which lay eggs to reproduce
- 9. Another way to spell 'jean'
- 11. Darwin's theory of Natural Selection provided the missing link for the theory of...
Down
- 1. things that grow from soil
- 2. How a population grows
- 3. first name of the author of "origin of species"
- 5. another word for beginning
- 7. the opposite of artificial
- 8. an Insect with 6 legs
- 10. finish this sentence "Survival of the..."