Across
- 4. the study of the growth and development of offspring from fertilization to birth
- 6. the study of similarities and differences in the physical structure of living things
- 7. two groups of the same species (evolved differently) that share this old member of species
- 9. body parts that have no function in their present day form
- 10. a diagram that shows evolutionary relationships
Down
- 1. parts of organisms that are similar in origin and structure
- 2. fossils in the fossil record support the theory of evolution by natural selection
- 3. parts that look similar but are passed down from different ancestors
- 5. If species inherited same genes from common ancestors they would have similar body structure and development
- 8. all of the fossils found in a timeline