Natural Selection

5. the process by which the distribution of traits in a population changes over many generations
9. a group of the same type of organism living in the same area
10. changes in climate over a long period of time that can be caused by natural events or human activities
11. the number of individuals with each trait in a population
15. a specific form of a gene that provides instructions for making a particular protein molecule
16. a related organism from a previous generation
17. a trait that makes it less likely that an individual will survive in a specific environment
19. to stay alive
20. a long piece of DNA that contains many genes
21. an instruction for making a protein molecule
22. the reproduction process in which two parents pass on their genes to create offspring
23. a specific characteristic of an individual organism
24. the reproduction process in which a single individual passes on their genes to create offspring

1. a group of individuals born and living at about the same time
2. everything (living and nonliving) that surrounds an organism
3. any difference in traits between individual organisms
4. having died out completely and no longer alive anywhere on Earth
6. a random change to a gene that sometimes results in a new trait
7. something in the environment that affects an individual’s chances of surviving
8. a way of hiding by looking the same as the background
12. a graph that uses bars to show how characteristics or values are distributed within a group
13. living things, such as plants, animals, and bacteria
14. a characteristic that all members of a species have
18. to receive genes from a parent
19. a group of organisms of the same kind (in one or more populations) that do not reproduce with organisms from any other group
24. a trait that makes it more likely that an individual will survive in a specific environment