Across
- 2. a feature of two organisms that are similar in function but different in structure
- 6. a type of mutation where an extra base is added to a DNA sequence
- 7. the changing of a one species splitting into two or more
- 10. two dissimilar species that evolve to look similar.
- 12. a features of two organisms that are similar in structure but different in function.
Down
- 1. Process through which populations adapt and change to better suit their environment
- 3. a chance change in the nucleotide bases of a living things DNA
- 4. the change in inheritable traits due to chance
- 5. changes in inheritble traits over successive generations
- 8. all the alleles and genes within a population
- 9. An organism ability to survive and reproduce
- 11. remains or impressions of prehistoric animals preserved in rock
