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