Across
- 3. Nature
- 5. Any remains, impression , or trace of a living thing of a former geologic age
- 8. Biology change in the gene pool of the population from generation to generation by such process as mutation, natural, selection & genetic drift
- 9. A flying reptile
Down
- 1. Known as the largest land animal
- 2. The struggle among organism both of the same & different species for food, space & other vital requirements
- 4. A distinguishing characteristic or quality, especially of one's personal nature
- 6. Human race/ mankind
- 7. DNA
- 10. to adjust one's self to different conditions environment