Across
- 5. to receive genes from a parent
- 6. trait a trait that makes it more likely that an individual will survive in a specific environment
- 7. a specific characteristic of an individual organism
- 8. a way of hiding by looking the same as the background
- 11. to stay alive
- 13. a long piece of DNA that contains many genes
- 14. a type of molecule that genes and chromosomes are made of
- 16. a group of individuals born and living at about the same time
- 17. selection the process by which the distribution of traits in a population changes over many generations
- 19. everything (living and nonliving) that surrounds an organism
- 20. a random change to a gene that sometimes results in a new trait
- 21. an organism produced as a result of reproduction
Down
- 1. the number of individuals with each trait in a population
- 2. a group of organisms of the same kind (in one or more populations) that do not reproduce with organisms from any other group
- 3. living things, such as plants, animals, and bacteria
- 4. an instruction for making a protein molecule
- 9. a related organism from a previous generation
- 10. a graph that uses bars to show how characteristics or values are distributed within a group
- 12. a group of the same type of organism living in the same area
- 15. trait a trait that makes it less likely that an individual will survive in a specific environment
- 18. any difference in traits between individual organisms