Across
- 2. The distribution of species on earth
- 3. Something that shows the evolution path and relations of different species
- 5. The study of a creatures body
- 8. Genetic diversity in a certain group of creatures
- 9. A reptile that typically has a long body, a tail, moveable eyelids, and a rough skin texture
- 13. Structures that used to, but no longer have a function
- 14. Body parts that seem similar, but aren't from a common ancestor
Down
- 1. An organism most fit to survive a habitat that will produce offspring with that better trait
- 3. An organism without a nucleus and non-organelle bound
- 4. A random extreme event that kills a large portion of a species, leaving another species with a higher percent
- 6. Different genes slowly changing through reproduction for new changes
- 7. A part of an animal that gives it strength better blood flow
- 10. Hardened organic material, typically bones, preserved in rock or other hard materials
- 11. The process of evolving new species
- 12. The study of embryos