Across
- 2. a group of organisms that can reproduce with one another in nature and produce fertile offspring
- 4. can be acquired from parent(s) during birth
- 5. having living members, currently exists
- 6. the process by which a species becomes more viable to its environment
- 10. how well an organism is adapted to its environment; likelihood of reproductive success
- 13. any difference between the individuals in a species or groups of organisms of any species
- 14. a group of organisms of one species that interbreed and live in the same place at the same time
- 15. having no living members, no longer existing
- 16. similar structures that have different origins
Down
- 1. a person or animal that is descended from a specific ancestor; an offspring
- 3. Early stage in the development of organisms
- 7. the most usual characteristics of a particular organism; a good example
- 8. history of life's progression as shown by fossils
- 9. An ancestor shared by two or more descendant species
- 11. Any change in the DNA sequence of a cell; can be beneficial, harmful, or neutral.
- 12. different structures that have similar origins
- 13. Structures that have no apparent function and appear to be residual parts from a past ancestor