Across
- 3. how a new kind of plant or animal species is created
- 7. a specific characteristic of an organism
- 12. biological process by which new individual organisms are produced
- 13. drift the change in the frequency of an existing gene variant in a population
- 15. the dynamic evolutionary process that fits organisms to their environment
- 17. an interaction between organisms or species in which both are harmed
- 18. type of reproduction that does not involve the fusion of gametes
- 19. the act or fact of living or continuing longer than another person or thing
- 20. occurs when species are diminished because of environmental forces
Down
- 1. difference in characteristics among the individuals of the same species
- 2. selection process whereby organisms better adapted to their environment tend to survive and produce more
- 4. provides living things with everything that is necessary to survive
- 5. selection only allows the selected traits to be passed through successive generations
- 6. product of reproduction, produced by one or more parents.
- 8. the passing of traits
- 9. change in the heritable characteristics of biological populations over generations
- 10. means that each generation has more offspring than can be supported by the environment
- 11. type of reproduction that involves two individuals
- 14. Darwin best known for his contributions to the science of evolution
- 16. a random change to genetic material