Across
- 4. refers to the variety of living things?
- 5. the study of the earth
- 6. change over time
- 8. well supported testible explanation
- 9. naked seed plants
- 13. produce seeds in fruit
- 14. theory of tendency toward perfection
- 16. derive his theories on evolution and natural selection
- 17. variation of differences among individuals of a species
- 18. the formation of new and distinct species in the course of evolution
- 20. 1795 theory of geological change
Down
- 1. a policy of gradual reform rather than sudden change or revolution
- 2. survivval of some individuals better suited for the environment
- 3. organs that serve no useful function in an organism
- 7. were derived from common ancestors
- 10. remains of ancient organism
- 11. structures that are similar
- 12. is the science of describing ,naming,and classifying species
- 15. father of evolution
- 19. algae share many molecular features with plants