Across
- 1. the study of the size, shape, and structure of animals, plants, and microorganisms and of the relationships of their constituent parts.
- 4. the person who created the theory of evolution through natural selection
- 6. If the alleles of a gene are different, one allele will be expressed;
- 7. the scientific study of functions and mechanisms in a living system.
- 10. animals that are killed and eaten by other animals
- 11. Some traits make an organism more likely to survive and reproduce in its environment.
- 12. an interaction between organisms or species in which both require a resource that is in limited supply
- 15. any environmental or physical pressure that elicits a response from an organism.
- 16. the process by which the information encoded in a gene is turned into a function
- 18. a successive stage in natural descent of organisms:
- 19. changes in the heritable traits of a population of organisms as successive generations replace one another
- 20. The basic unit of heredity passed from parent to child.
Down
- 2. The effect of the other allele, is masked.
- 3. a characteristic or trait that can be passed from a parent to a child through the genes.
- 5. process in which an organism adapts to its environment through selectively reproducing changes in its genotype.
- 8. the formation of new and distinct species in the course of evolution.
- 9. an organism's ability to pass its genetic material to its offspring.
- 13. a biological interaction where one organism, the predator, kills and eats another organism
- 14. Multiplying or increasing in number.
- 17. the changing of the structure of a gene, resulting in a variant form