Across
- 3. the process through which populations of living organisms adapt and change.
- 4. actions that are observed in organisms throughout their species.
- 7. a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
- 9. the genetic constitution of an individual organism.
- 11. a change or the process of change by which an organism or species becomes better suited to its environment.
- 12. a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
- 14. the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.
- 15. the variety of life in the world or in a particular habitat or ecosystem.
- 16. characterized by, produced by, or involving chemical reactions in living organisms
- 17. the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.
- 18. Time, the extensive interval of time occupied by the geologic history of Earth.
Down
- 1. the scientific study of genes and heredity
- 2. the arrangement of animals and plants in taxonomic groups according to their observed similarities
- 5. the dying out of a species.
- 6. an organic chemical that contains genetic information and instructions for protein synthesis.
- 8. Success, the passing of genes onto the next generation in a way that they too can pass those genes on.
- 10. Features, properties related to the external structure of soil (such as color and texture) or of plants.
- 13. Anatomy, the study of similarities and differences in the anatomy of different species