Natural Selection

3. an event or process that leads to a result or change
4. an animal that is hunted or killed by another animal for food
7. everything (living and nonliving) that surrounds an organism
9. trait. a trait that makes it more likely that an individual will survive in a specific environment
11. any difference in traits between individual organisms
13. the number of individuals with each trait in a population
16. a group of the same type of organism living in the same area

1. a characteristic that all members of a species have
2. an animal that hunts and kills other animals for food
4. an idea about what might happen that is based on what you already know
5. a group of individuals born and living at about the same time
6. a graph that uses bars to show how characteristics or values are distributed within a group
8. a specific characteristic of an individual organism
10. a result or change that happens because of an event or process
12. a random change to a gene that sometimes results in a new trait
14. living things, such as plants, animals, and bacteria
15. a group of organisms of the same kind (in one or more populations) that do not reproduce with organisms from any other group