Natural Selection

4. a way of hiding by looking the same as the background
9. to stay alive
12. a related organism from a previous generation
15. a trait that makes it more likely that an individual will survive in a specific environment
17. a type of large molecule that performs important functions inside organisms
18. a random change to a gene that sometimes results in a new trait

1. an animal that hunts and kills other animals for food
2. an instruction for making a protein molecule
3. a group of the same type of organism living in the same area
5. a characteristic that all members of a species have
6. everything (living and nonliving) that surrounds an organism
7. a long piece of DNA that contains many genes
8. the number of individuals with each trait in a population
10. living things, such as plants animals and bacteria
11. a graph that uses bars to show how characteristics or values are distributed within a group
13. a group of the same kind that do not reproduce with organisms from any other group
14. any difference in traits between individual organisms
16. a specific characteristic of an individual organism