Across
- 2. exist within a populatio
- 4. methicillin-resistant Staphylococcus aureus
- 5. they do not evolve
- 7. when population or organisims change over time
- 8. similar anatomy from common ancestors (eg. forelimbs of humans/cat/whale/bat)
- 9. similar structures, function in similar environment
Down
- 1. similar early development
- 3. they evolves
- 4. similar DNA and amino acid sequences
- 6. structures with little or no use (eg.flightless bird wings, appendix, whale thighs)