Across
- 5. represents the evolutionary relationships among an organism or set of organisms
- 6. traces of once-living organisms
- 8. used to make phylogeny
- 10. show a group of organisms that includes ancestors and all descendants of that ancestor
Down
- 1. comparing body parts
- 2. features that are similar in structure but appear in different organisms and have different functions
- 3. remnants of organs or structures that had a function in early ancestors
- 4. comparisons between DNA nucleotide or protein amino acid sequences
- 7. the study of embryological development
- 9. the study of the distribution of organisms around the world