Across
- 4. a characteristic that all members of a species have
- 5. an animal that is hunted or killed by another animal for food
- 6. an event or process that leads to a result or change
- 8. a type of molecule that genes and chromosomes are made of
- 11. having died out completely and no longer alive anywhere on Earth
- 12. a way of hiding by looking the same as the background
- 13. a group of the same type of organism living in the same area
- 15. an instruction for making a protein molecule
- 16. a result or change that happens because of an event or process
- 17. an organism produced as a result of reproduction
- 20. the number of individuals with each trait in a population
- 23. an animal that hunts and kills other animals for food
- 24. a random change to a gene that sometimes results in a new trait
- 25. a graph that uses bars to show how characteristics or values are distributed within a group
Down
- 1. a group of individuals born and living at about the same time
- 2. any difference in traits between individual organisms
- 3. evidence of life from the past such as fossilized bones footprints or leaf prints
- 6. a long piece of DNA that contains many genes
- 7. everything (living and nonliving) that surrounds an organism
- 9. a trait that makes it more likely that an individual will survive in a specific environment
- 10. a group of organisms of the same kind that do not reproduce with organisms from any other group
- 14. a related organism from a previous generation
- 18. a type of large molecule that performs important functions inside organisms
- 19. living things such as plants animals and bacteria
- 21. to receive genes from a parent
- 22. a specific characteristic of an individual organism