Natural Selection
Across
- 3. the phenotype is the set of observable characteristics or traits of an organism.
- 6. the biggest shark in the world, but one of the largest fish ever to exist.
- 7. a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.
- 9. process that fits organisms to their environment, enhancing their evolutionary fitness.
- 10. the chance disappearance of particular genes as individuals die or do not reproduce.
- 11. the genetic constitution of an individual organism.
Down
- 1. the transfer of genetic material from one population to another
- 2. Genetic variation is the difference in DNA among individuals or the differences between populations.
- 4. a group of individuals of the same species living and interbreeding within a given area.
- 5. a group of organisms that can reproduce with one another in nature and produce fertile offspring.
- 8. a specific characteristic of an organism.