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