Across
- 3. Scientist that studies fossils
- 5. are the permanent changes in the sequence of DNA
- 7. the addition of one or more nucleotideDeletion – removal of one or more nucleotides
- 8. a single species or group of species evolve into different parts and live differently
Down
- 1. the process where a mature egg is released from an ovary
- 2. any preserved evidence of an organism
- 4. disappearance of a species from all parts of it's geographical range
- 6. the likelihood an event will occur