Natural Selection

2. The process by which the distribution of traits in a population changes over many generations (two words, no spaces)
5. The number of individuals with each trait in a population
7. A group of the same type of organism living in the same area
9. A characteristic that all members of a species have, which varies between organisms
10. A trait that makes it more likely that an individual will survive in a specific environment (two words, no spaces)
12. A random change to a gene that sometimes results in a new trait
13. An event or process that leads to a result or change

1. A group of individuals born and living at about the same time
3. Any difference in traits between individual organisms
4. A trait that makes it less likely that an individual will survive in a specific environment (two words, no spaces)
6. Everything (living and nonliving) that surrounds an organism
8. An idea about what might happen that is based on what you already know
11. A specific characteristic of an individual organism
14. A result or change that happens because of an event or process